Question

Michiko works in a shop that rents cross-country skis. Two clients come in to rent skis. Michiko knows that a person's height is proportional to his or her correct ski length. She figures out that the first client, who is 70 inches tall, needs 210-centimeter skis. The second client is 63 inches tall. What length of skis does the second client need?

Answer 1

you just need to make comparison between the two of them

210 / 70 = x /63

x/63 = 3

x = 189

Hope this helps