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Finding the Fourth Proportional to 137,677.86, 206,553.24 and 42,907.86

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Solution

The fourth proportional to 137,677.86, 206,553.24 and 42,907.86 is: 64,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,677.86 : 206,553.24 = 42,907.86 : x
  2. Step 2: Convert to fraction form
    137,677.86/206,553.24 = 42,907.86/x
  3. Step 3: Cross multiply
    137,677.86x = 206,553.24 × 42,907.86
  4. Step 4: Simplify right side
    137,677.86x = 8,862,757,504.47
  5. Step 5: Solve for x
    x = 8,862,757,504.47/137,677.86
  6. Step 6: Final answer
    x = 64,373.15

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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.