Home / 138,472.58-207,625.69-54,132.29

Finding the Fourth Proportional to 138,472.58, 207,625.69 and 54,132.29

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Solution

The fourth proportional to 138,472.58, 207,625.69 and 54,132.29 is: 81,165.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,472.58 : 207,625.69 = 54,132.29 : x
  2. Step 2: Convert to fraction form
    138,472.58/207,625.69 = 54,132.29/x
  3. Step 3: Cross multiply
    138,472.58x = 207,625.69 × 54,132.29
  4. Step 4: Simplify right side
    138,472.58x = 11,239,254,446.26
  5. Step 5: Solve for x
    x = 11,239,254,446.26/138,472.58
  6. Step 6: Final answer
    x = 81,165.92

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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.