Home / 87,767.14-131,724.56-82,231.30

Finding the Fourth Proportional to 87,767.14, 131,724.56 and 82,231.30

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Solution

The fourth proportional to 87,767.14, 131,724.56 and 82,231.30 is: 123,416.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,767.14 : 131,724.56 = 82,231.30 : x
  2. Step 2: Convert to fraction form
    87,767.14/131,724.56 = 82,231.30/x
  3. Step 3: Cross multiply
    87,767.14x = 131,724.56 × 82,231.30
  4. Step 4: Simplify right side
    87,767.14x = 10,831,881,810.73
  5. Step 5: Solve for x
    x = 10,831,881,810.73/87,767.14
  6. Step 6: Final answer
    x = 123,416.14

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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.