Home / 132,977.40-199,366.90-80,375.80

Finding the Fourth Proportional to 132,977.40, 199,366.90 and 80,375.80

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Solution

The fourth proportional to 132,977.40, 199,366.90 and 80,375.80 is: 120,503.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,977.40 : 199,366.90 = 80,375.80 : x
  2. Step 2: Convert to fraction form
    132,977.40/199,366.90 = 80,375.80/x
  3. Step 3: Cross multiply
    132,977.40x = 199,366.90 × 80,375.80
  4. Step 4: Simplify right side
    132,977.40x = 16,024,274,081.02
  5. Step 5: Solve for x
    x = 16,024,274,081.02/132,977.40
  6. Step 6: Final answer
    x = 120,503.74

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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.