Home / 138,502.42-207,847.10-54,252.13

Finding the Fourth Proportional to 138,502.42, 207,847.10 and 54,252.13

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Solution

The fourth proportional to 138,502.42, 207,847.10 and 54,252.13 is: 81,414.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,502.42 : 207,847.10 = 54,252.13 : x
  2. Step 2: Convert to fraction form
    138,502.42/207,847.10 = 54,252.13/x
  3. Step 3: Cross multiply
    138,502.42x = 207,847.10 × 54,252.13
  4. Step 4: Simplify right side
    138,502.42x = 11,276,147,575.76
  5. Step 5: Solve for x
    x = 11,276,147,575.76/138,502.42
  6. Step 6: Final answer
    x = 81,414.81

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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.