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Finding the Fourth Proportional to 102,500.87, 153,795.71 and 55,060.61

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Solution

The fourth proportional to 102,500.87, 153,795.71 and 55,060.61 is: 82,614.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,500.87 : 153,795.71 = 55,060.61 : x
  2. Step 2: Convert to fraction form
    102,500.87/153,795.71 = 55,060.61/x
  3. Step 3: Cross multiply
    102,500.87x = 153,795.71 × 55,060.61
  4. Step 4: Simplify right side
    102,500.87x = 8,468,085,607.98
  5. Step 5: Solve for x
    x = 8,468,085,607.98/102,500.87
  6. Step 6: Final answer
    x = 82,614.77

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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.