Home / 129,942.28-194,991.18-119,366.92

Finding the Fourth Proportional to 129,942.28, 194,991.18 and 119,366.92

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Solution

The fourth proportional to 129,942.28, 194,991.18 and 119,366.92 is: 179,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,942.28 : 194,991.18 = 119,366.92 : x
  2. Step 2: Convert to fraction form
    129,942.28/194,991.18 = 119,366.92/x
  3. Step 3: Cross multiply
    129,942.28x = 194,991.18 × 119,366.92
  4. Step 4: Simplify right side
    129,942.28x = 23,275,496,583.77
  5. Step 5: Solve for x
    x = 23,275,496,583.77/129,942.28
  6. Step 6: Final answer
    x = 179,121.81

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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.