Home / 129,414.24-194,138.44-45,175.92

Finding the Fourth Proportional to 129,414.24, 194,138.44 and 45,175.92

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Solution

The fourth proportional to 129,414.24, 194,138.44 and 45,175.92 is: 67,769.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,414.24 : 194,138.44 = 45,175.92 : x
  2. Step 2: Convert to fraction form
    129,414.24/194,138.44 = 45,175.92/x
  3. Step 3: Cross multiply
    129,414.24x = 194,138.44 × 45,175.92
  4. Step 4: Simplify right side
    129,414.24x = 8,770,382,634.36
  5. Step 5: Solve for x
    x = 8,770,382,634.36/129,414.24
  6. Step 6: Final answer
    x = 67,769.84

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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.