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Finding the Fourth Proportional to 129,751.40, 194,627.10 and 36,257.15

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Solution

The fourth proportional to 129,751.40, 194,627.10 and 36,257.15 is: 54,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,751.40 : 194,627.10 = 36,257.15 : x
  2. Step 2: Convert to fraction form
    129,751.40/194,627.10 = 36,257.15/x
  3. Step 3: Cross multiply
    129,751.40x = 194,627.10 × 36,257.15
  4. Step 4: Simplify right side
    129,751.40x = 7,056,623,958.77
  5. Step 5: Solve for x
    x = 7,056,623,958.77/129,751.40
  6. Step 6: Final answer
    x = 54,385.73

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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.