Home / 113,629.23-156,809.12-63,331.47

Finding the Fourth Proportional to 113,629.23, 156,809.12 and 63,331.47

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Solution

The fourth proportional to 113,629.23, 156,809.12 and 63,331.47 is: 87,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,629.23 : 156,809.12 = 63,331.47 : x
  2. Step 2: Convert to fraction form
    113,629.23/156,809.12 = 63,331.47/x
  3. Step 3: Cross multiply
    113,629.23x = 156,809.12 × 63,331.47
  4. Step 4: Simplify right side
    113,629.23x = 9,930,951,762.35
  5. Step 5: Solve for x
    x = 9,930,951,762.35/113,629.23
  6. Step 6: Final answer
    x = 87,397.86

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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.