Home / 132,720.32-198,960.17-66,180.85

Finding the Fourth Proportional to 132,720.32, 198,960.17 and 66,180.85

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Solution

The fourth proportional to 132,720.32, 198,960.17 and 66,180.85 is: 99,211.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,720.32 : 198,960.17 = 66,180.85 : x
  2. Step 2: Convert to fraction form
    132,720.32/198,960.17 = 66,180.85/x
  3. Step 3: Cross multiply
    132,720.32x = 198,960.17 × 66,180.85
  4. Step 4: Simplify right side
    132,720.32x = 13,167,352,338.44
  5. Step 5: Solve for x
    x = 13,167,352,338.44/132,720.32
  6. Step 6: Final answer
    x = 99,211.27

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1.5x scale

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.