Home / 138,472.29-207,407.12-91,033.83

Finding the Fourth Proportional to 138,472.29, 207,407.12 and 91,033.83

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Solution

The fourth proportional to 138,472.29, 207,407.12 and 91,033.83 is: 136,352.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,472.29 : 207,407.12 = 91,033.83 : x
  2. Step 2: Convert to fraction form
    138,472.29/207,407.12 = 91,033.83/x
  3. Step 3: Cross multiply
    138,472.29x = 207,407.12 × 91,033.83
  4. Step 4: Simplify right side
    138,472.29x = 18,881,064,047.70
  5. Step 5: Solve for x
    x = 18,881,064,047.70/138,472.29
  6. Step 6: Final answer
    x = 136,352.65

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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.