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Finding the Fourth Proportional to 138,604.53, 207,868.19 and 58,614.87

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Solution

The fourth proportional to 138,604.53, 207,868.19 and 58,614.87 is: 87,905.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,604.53 : 207,868.19 = 58,614.87 : x
  2. Step 2: Convert to fraction form
    138,604.53/207,868.19 = 58,614.87/x
  3. Step 3: Cross multiply
    138,604.53x = 207,868.19 × 58,614.87
  4. Step 4: Simplify right side
    138,604.53x = 12,184,166,640.91
  5. Step 5: Solve for x
    x = 12,184,166,640.91/138,604.53
  6. Step 6: Final answer
    x = 87,905.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.