Home / 102,630.92-141,618.17-57,311.42

Finding the Fourth Proportional to 102,630.92, 141,618.17 and 57,311.42

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Solution

The fourth proportional to 102,630.92, 141,618.17 and 57,311.42 is: 79,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,630.92 : 141,618.17 = 57,311.42 : x
  2. Step 2: Convert to fraction form
    102,630.92/141,618.17 = 57,311.42/x
  3. Step 3: Cross multiply
    102,630.92x = 141,618.17 × 57,311.42
  4. Step 4: Simplify right side
    102,630.92x = 8,116,337,855.69
  5. Step 5: Solve for x
    x = 8,116,337,855.69/102,630.92
  6. Step 6: Final answer
    x = 79,082.78

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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.