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Finding the Fourth Proportional to 159,229.38, 219,732 and 87,609.44

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Solution

The fourth proportional to 159,229.38, 219,732 and 87,609.44 is: 120,898.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,229.38 : 219,732 = 87,609.44 : x
  2. Step 2: Convert to fraction form
    159,229.38/219,732 = 87,609.44/x
  3. Step 3: Cross multiply
    159,229.38x = 219,732 × 87,609.44
  4. Step 4: Simplify right side
    159,229.38x = 19,250,597,470.08
  5. Step 5: Solve for x
    x = 19,250,597,470.08/159,229.38
  6. Step 6: Final answer
    x = 120,898.53

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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.