Home / 129,983.70-194,793.30-103,375.20

Finding the Fourth Proportional to 129,983.70, 194,793.30 and 103,375.20

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Solution

The fourth proportional to 129,983.70, 194,793.30 and 103,375.20 is: 154,917.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,983.70 : 194,793.30 = 103,375.20 : x
  2. Step 2: Convert to fraction form
    129,983.70/194,793.30 = 103,375.20/x
  3. Step 3: Cross multiply
    129,983.70x = 194,793.30 × 103,375.20
  4. Step 4: Simplify right side
    129,983.70x = 20,136,796,346.16
  5. Step 5: Solve for x
    x = 20,136,796,346.16/129,983.70
  6. Step 6: Final answer
    x = 154,917.86

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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.