Home / 87,458.05-131,186.63-75,575.72

Finding the Fourth Proportional to 87,458.05, 131,186.63 and 75,575.72

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Solution

The fourth proportional to 87,458.05, 131,186.63 and 75,575.72 is: 113,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,458.05 : 131,186.63 = 75,575.72 : x
  2. Step 2: Convert to fraction form
    87,458.05/131,186.63 = 75,575.72/x
  3. Step 3: Cross multiply
    87,458.05x = 131,186.63 × 75,575.72
  4. Step 4: Simplify right side
    87,458.05x = 9,914,524,016.62
  5. Step 5: Solve for x
    x = 9,914,524,016.62/87,458.05
  6. Step 6: Final answer
    x = 113,363.20

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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.