Home / 87,750.72-131,747.04-74,687.04

Finding the Fourth Proportional to 87,750.72, 131,747.04 and 74,687.04

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Solution

The fourth proportional to 87,750.72, 131,747.04 and 74,687.04 is: 112,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,750.72 : 131,747.04 = 74,687.04 : x
  2. Step 2: Convert to fraction form
    87,750.72/131,747.04 = 74,687.04/x
  3. Step 3: Cross multiply
    87,750.72x = 131,747.04 × 74,687.04
  4. Step 4: Simplify right side
    87,750.72x = 9,839,796,446.36
  5. Step 5: Solve for x
    x = 9,839,796,446.36/87,750.72
  6. Step 6: Final answer
    x = 112,133.51

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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.