Home / 143,754,001.92-198,415,789.92-81,910,890.72

Finding the Fourth Proportional to 143,754,001.92, 198,415,789.92 and 81,910,890.72

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Solution

The fourth proportional to 143,754,001.92, 198,415,789.92 and 81,910,890.72 is: 113,057,124.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,754,001.92 : 198,415,789.92 = 81,910,890.72 : x
  2. Step 2: Convert to fraction form
    143,754,001.92/198,415,789.92 = 81,910,890.72/x
  3. Step 3: Cross multiply
    143,754,001.92x = 198,415,789.92 × 81,910,890.72
  4. Step 4: Simplify right side
    143,754,001.92x = 16,252,414,085,259,596
  5. Step 5: Solve for x
    x = 16,252,414,085,259,596/143,754,001.92
  6. Step 6: Final answer
    x = 113,057,124.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.