Home / 132,891.20-199,221.60-80,244.80

Finding the Fourth Proportional to 132,891.20, 199,221.60 and 80,244.80

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Solution

The fourth proportional to 132,891.20, 199,221.60 and 80,244.80 is: 120,297.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,891.20 : 199,221.60 = 80,244.80 : x
  2. Step 2: Convert to fraction form
    132,891.20/199,221.60 = 80,244.80/x
  3. Step 3: Cross multiply
    132,891.20x = 199,221.60 × 80,244.80
  4. Step 4: Simplify right side
    132,891.20x = 15,986,497,447.68
  5. Step 5: Solve for x
    x = 15,986,497,447.68/132,891.20
  6. Step 6: Final answer
    x = 120,297.64

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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.