Find Percent Given a Part and a Whole Using the Percent Proportion

What if I want to know other parts of a percent problem? 15 is what percent of 25? 9 is 45% of what number?

When solving percent problems look for 3 parts: The Part (*usually says IS before the number) The Whole(*usually says OF before the number) The Percent (*has a % sign behind the number)

Example:

If we set things up in a proportion, then you can find any of the 3 parts Whole percent 100 =

= 100 Part (is) Whole (of) percent 100 Examples Hint: Do you know the part, whole or percent? What is 5% of 180? part (is) whole (of) 100 Part (is) Whole (of) percent 100 =

= 100 part whole percent 100 Examples Hint: Do you know the part, whole or percent? $4 is what percent of $50? part (is) whole (of) 100 part whole percent 100 =

= 100 part whole percent 100 Examples Hint: Do you know the part, whole or percent? 54 is 45% of what number? part (is) whole (of) 100 part whole percent 100 =

= 100 part whole percent 100 Examples Hint: Do you know the part, whole or percent? What percent of 200 is 5? part (is) whole (of) 100 part whole percent 100 =

Group Work % 100 700 1% of what number is 7? 𝑝𝑎𝑟𝑡 𝑤ℎ𝑜𝑙𝑒 = 700 1% of what number is 7? 2) 30 is 50% of what number? 60 3) What number is 70% of 250? 175 13 is 26% of what number? 50

40 5) What percent of 90 is 36? 6) What percent of 125 is 5? 4 7) 12.5 is 25% of what number? 50 8) 40% of what number is 82 205