Home / 102,542.04-141,507.80-57,217.28

Finding the Fourth Proportional to 102,542.04, 141,507.80 and 57,217.28

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Solution

The fourth proportional to 102,542.04, 141,507.80 and 57,217.28 is: 78,959.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,542.04 : 141,507.80 = 57,217.28 : x
  2. Step 2: Convert to fraction form
    102,542.04/141,507.80 = 57,217.28/x
  3. Step 3: Cross multiply
    102,542.04x = 141,507.80 × 57,217.28
  4. Step 4: Simplify right side
    102,542.04x = 8,096,691,414.78
  5. Step 5: Solve for x
    x = 8,096,691,414.78/102,542.04
  6. Step 6: Final answer
    x = 78,959.73

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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.