Home / 181,115.24-271,562.09-86,374.40

Finding the Fourth Proportional to 181,115.24, 271,562.09 and 86,374.40

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Solution

The fourth proportional to 181,115.24, 271,562.09 and 86,374.40 is: 129,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,115.24 : 271,562.09 = 86,374.40 : x
  2. Step 2: Convert to fraction form
    181,115.24/271,562.09 = 86,374.40/x
  3. Step 3: Cross multiply
    181,115.24x = 271,562.09 × 86,374.40
  4. Step 4: Simplify right side
    181,115.24x = 23,456,013,481.34
  5. Step 5: Solve for x
    x = 23,456,013,481.34/181,115.24
  6. Step 6: Final answer
    x = 129,508.78

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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.