Home / 129,965.20-194,933.40-106,550.80

Finding the Fourth Proportional to 129,965.20, 194,933.40 and 106,550.80

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Solution

The fourth proportional to 129,965.20, 194,933.40 and 106,550.80 is: 159,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,965.20 : 194,933.40 = 106,550.80 : x
  2. Step 2: Convert to fraction form
    129,965.20/194,933.40 = 106,550.80/x
  3. Step 3: Cross multiply
    129,965.20x = 194,933.40 × 106,550.80
  4. Step 4: Simplify right side
    129,965.20x = 20,770,309,716.72
  5. Step 5: Solve for x
    x = 20,770,309,716.72/129,965.20
  6. Step 6: Final answer
    x = 159,814.39

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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.