Home / 129,743.70-194,761.35-100,292.10

Finding the Fourth Proportional to 129,743.70, 194,761.35 and 100,292.10

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Solution

The fourth proportional to 129,743.70, 194,761.35 and 100,292.10 is: 150,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,743.70 : 194,761.35 = 100,292.10 : x
  2. Step 2: Convert to fraction form
    129,743.70/194,761.35 = 100,292.10/x
  3. Step 3: Cross multiply
    129,743.70x = 194,761.35 × 100,292.10
  4. Step 4: Simplify right side
    129,743.70x = 19,533,024,790.34
  5. Step 5: Solve for x
    x = 19,533,024,790.34/129,743.70
  6. Step 6: Final answer
    x = 150,550.85

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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.