Home / 87,416.46-130,974.03-68,815.62

Finding the Fourth Proportional to 87,416.46, 130,974.03 and 68,815.62

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Solution

The fourth proportional to 87,416.46, 130,974.03 and 68,815.62 is: 103,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,416.46 : 130,974.03 = 68,815.62 : x
  2. Step 2: Convert to fraction form
    87,416.46/130,974.03 = 68,815.62/x
  3. Step 3: Cross multiply
    87,416.46x = 130,974.03 × 68,815.62
  4. Step 4: Simplify right side
    87,416.46x = 9,013,059,078.35
  5. Step 5: Solve for x
    x = 9,013,059,078.35/87,416.46
  6. Step 6: Final answer
    x = 103,104.83

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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.