Question

In a proportion,the 1st,2nd and 4th terms are 51, 68 and 108 respectively. Find the 3rd term ​

Answer 1

Step-by-step explanation:

let third term be x

51:68 :: x:108

product of mean = product of extreme

68x = 51×108

x= (51×108)/68 = 81

hence ,third term is equal to 81 .