Home / 102,555.11-141,508.01-57,229.54

Finding the Fourth Proportional to 102,555.11, 141,508.01 and 57,229.54

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Solution

The fourth proportional to 102,555.11, 141,508.01 and 57,229.54 is: 78,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,555.11 : 141,508.01 = 57,229.54 : x
  2. Step 2: Convert to fraction form
    102,555.11/141,508.01 = 57,229.54/x
  3. Step 3: Cross multiply
    102,555.11x = 141,508.01 × 57,229.54
  4. Step 4: Simplify right side
    102,555.11x = 8,098,438,107.92
  5. Step 5: Solve for x
    x = 8,098,438,107.92/102,555.11
  6. Step 6: Final answer
    x = 78,966.69

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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.