Home / 87,772.34-131,732.35-82,236.49

Finding the Fourth Proportional to 87,772.34, 131,732.35 and 82,236.49

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Solution

The fourth proportional to 87,772.34, 131,732.35 and 82,236.49 is: 123,423.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,772.34 : 131,732.35 = 82,236.49 : x
  2. Step 2: Convert to fraction form
    87,772.34/131,732.35 = 82,236.49/x
  3. Step 3: Cross multiply
    87,772.34x = 131,732.35 × 82,236.49
  4. Step 4: Simplify right side
    87,772.34x = 10,833,206,083.45
  5. Step 5: Solve for x
    x = 10,833,206,083.45/87,772.34
  6. Step 6: Final answer
    x = 123,423.92

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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.