Home / 132,490.42-198,517.34-76,377.90

Finding the Fourth Proportional to 132,490.42, 198,517.34 and 76,377.90

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Solution

The fourth proportional to 132,490.42, 198,517.34 and 76,377.90 is: 114,441.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,490.42 : 198,517.34 = 76,377.90 : x
  2. Step 2: Convert to fraction form
    132,490.42/198,517.34 = 76,377.90/x
  3. Step 3: Cross multiply
    132,490.42x = 198,517.34 × 76,377.90
  4. Step 4: Simplify right side
    132,490.42x = 15,162,337,542.79
  5. Step 5: Solve for x
    x = 15,162,337,542.79/132,490.42
  6. Step 6: Final answer
    x = 114,441.01

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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.