Home / 132,821.92-199,247.46-66,278.80

Finding the Fourth Proportional to 132,821.92, 199,247.46 and 66,278.80

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Solution

The fourth proportional to 132,821.92, 199,247.46 and 66,278.80 is: 99,425.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,821.92 : 199,247.46 = 66,278.80 : x
  2. Step 2: Convert to fraction form
    132,821.92/199,247.46 = 66,278.80/x
  3. Step 3: Cross multiply
    132,821.92x = 199,247.46 × 66,278.80
  4. Step 4: Simplify right side
    132,821.92x = 13,205,882,551.85
  5. Step 5: Solve for x
    x = 13,205,882,551.85/132,821.92
  6. Step 6: Final answer
    x = 99,425.48

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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.