Home / 87,942.82-131,957.96-70,191.66

Finding the Fourth Proportional to 87,942.82, 131,957.96 and 70,191.66

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Solution

The fourth proportional to 87,942.82, 131,957.96 and 70,191.66 is: 105,322.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,942.82 : 131,957.96 = 70,191.66 : x
  2. Step 2: Convert to fraction form
    87,942.82/131,957.96 = 70,191.66/x
  3. Step 3: Cross multiply
    87,942.82x = 131,957.96 × 70,191.66
  4. Step 4: Simplify right side
    87,942.82x = 9,262,348,262.61
  5. Step 5: Solve for x
    x = 9,262,348,262.61/87,942.82
  6. Step 6: Final answer
    x = 105,322.39

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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.