Home / 135,972.66-187,669.24-86,882.88

Finding the Fourth Proportional to 135,972.66, 187,669.24 and 86,882.88

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Solution

The fourth proportional to 135,972.66, 187,669.24 and 86,882.88 is: 119,915.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,972.66 : 187,669.24 = 86,882.88 : x
  2. Step 2: Convert to fraction form
    135,972.66/187,669.24 = 86,882.88/x
  3. Step 3: Cross multiply
    135,972.66x = 187,669.24 × 86,882.88
  4. Step 4: Simplify right side
    135,972.66x = 16,305,244,058.61
  5. Step 5: Solve for x
    x = 16,305,244,058.61/135,972.66
  6. Step 6: Final answer
    x = 119,915.61

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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.