Question

Find x in tha following proportions: 169:x::x:1​

Answer 1

Answer:

$169 : x: :x : 1 \\ \\ \therefore \: \frac{169}{x} = \frac{x}{1} \\ \\ \therefore \: {x}^{2} = 169 \\ \\ \huge \red {\boxed{\therefore \: x = 13}}$

Answer 2

Answer:

169 : x : : x : 1

169/ x = x/1

x2 = 169

= 169 / 13

= 13