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Finding the Fourth Proportional to 138,241.62, 207,360.96 and 63,340.56

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Solution

The fourth proportional to 138,241.62, 207,360.96 and 63,340.56 is: 95,010.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,241.62 : 207,360.96 = 63,340.56 : x
  2. Step 2: Convert to fraction form
    138,241.62/207,360.96 = 63,340.56/x
  3. Step 3: Cross multiply
    138,241.62x = 207,360.96 × 63,340.56
  4. Step 4: Simplify right side
    138,241.62x = 13,134,359,328.54
  5. Step 5: Solve for x
    x = 13,134,359,328.54/138,241.62
  6. Step 6: Final answer
    x = 95,010.17

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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.