Home / 129,799.80-194,819.94-79,977.24

Finding the Fourth Proportional to 129,799.80, 194,819.94 and 79,977.24

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Solution

The fourth proportional to 129,799.80, 194,819.94 and 79,977.24 is: 120,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,799.80 : 194,819.94 = 79,977.24 : x
  2. Step 2: Convert to fraction form
    129,799.80/194,819.94 = 79,977.24/x
  3. Step 3: Cross multiply
    129,799.80x = 194,819.94 × 79,977.24
  4. Step 4: Simplify right side
    129,799.80x = 15,581,161,098.17
  5. Step 5: Solve for x
    x = 15,581,161,098.17/129,799.80
  6. Step 6: Final answer
    x = 120,039.95

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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.