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Finding the Fourth Proportional to 137,372.97, 205,983.75 and 42,576.87

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Solution

The fourth proportional to 137,372.97, 205,983.75 and 42,576.87 is: 63,841.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,372.97 : 205,983.75 = 42,576.87 : x
  2. Step 2: Convert to fraction form
    137,372.97/205,983.75 = 42,576.87/x
  3. Step 3: Cross multiply
    137,372.97x = 205,983.75 × 42,576.87
  4. Step 4: Simplify right side
    137,372.97x = 8,770,143,345.86
  5. Step 5: Solve for x
    x = 8,770,143,345.86/137,372.97
  6. Step 6: Final answer
    x = 63,841.84

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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.