Home / 113,177.52-156,194.28-72,974.97

Finding the Fourth Proportional to 113,177.52, 156,194.28 and 72,974.97

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Solution

The fourth proportional to 113,177.52, 156,194.28 and 72,974.97 is: 100,711.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,177.52 : 156,194.28 = 72,974.97 : x
  2. Step 2: Convert to fraction form
    113,177.52/156,194.28 = 72,974.97/x
  3. Step 3: Cross multiply
    113,177.52x = 156,194.28 × 72,974.97
  4. Step 4: Simplify right side
    113,177.52x = 11,398,272,897.17
  5. Step 5: Solve for x
    x = 11,398,272,897.17/113,177.52
  6. Step 6: Final answer
    x = 100,711.46

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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.