Math, asked by bamalsunny74, 1 month ago

114.3:122.3:135::155.97 are they in poportion

Answers

Answered by Anonymous
0

Answer:

NO

Step-by-step explanation:

Given the four proportional numbers 12:22::42:72

Let x

be the number added to each of these numbers, so the new numbers become

First number =12+x

Second number =22+x

Third number =42+x

Fourth number =72+x

Now after adding an unknown numbers, since the resulting numbers need to be in proportion so we can write these numbers as

12+x:22+x::42+x:72+x

Now we know the means and extremes property of proportionality where the product of extremes is equal to the product of mean, hence we can write

(12+x)×(72+x)=(22+x)×(42+x)

Now by solving this

⇒12×72+12x+72x+x2=22×42+22x+42x+x2⇒864+84x=924+64x⇒84x−64x=924−864⇒20x=60⇒x=3

Therefore we get the value of x=3

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