Three numbers are in the ratio 1 : 2 : 3 and the sum of their squares is 126. The numbers are:

x^2 + (2x)^2 + (3x)^2 = 126 -> 14x^2 = 126 -> x^2 = 9 -> x = 3। संख्याएँ 3, 6, 9 हैं।