Home / 126,001.57-173,642.92-90,129.30

Finding the Fourth Proportional to 126,001.57, 173,642.92 and 90,129.30

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Solution

The fourth proportional to 126,001.57, 173,642.92 and 90,129.30 is: 124,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,001.57 : 173,642.92 = 90,129.30 : x
  2. Step 2: Convert to fraction form
    126,001.57/173,642.92 = 90,129.30/x
  3. Step 3: Cross multiply
    126,001.57x = 173,642.92 × 90,129.30
  4. Step 4: Simplify right side
    126,001.57x = 15,650,314,829.56
  5. Step 5: Solve for x
    x = 15,650,314,829.56/126,001.57
  6. Step 6: Final answer
    x = 124,207.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.