2.5 algebra 1 question

Question

A boat can travel 54 miles on 9 gallons of gasoline. How much gasoline will it need to go 120 miles?

Answer 1

54 mi/ 9 gallons = 6 miles per gallon

120 miles divided by 6 miles per gallon = 20 gallons

54/9 = 120/ ?

54 * ? = 9 * 120

54 * ? = 1080

? = 20

20 gallons