Home / 129,385.11-194,095.89-45,132.98

Finding the Fourth Proportional to 129,385.11, 194,095.89 and 45,132.98

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Solution

The fourth proportional to 129,385.11, 194,095.89 and 45,132.98 is: 67,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,385.11 : 194,095.89 = 45,132.98 : x
  2. Step 2: Convert to fraction form
    129,385.11/194,095.89 = 45,132.98/x
  3. Step 3: Cross multiply
    129,385.11x = 194,095.89 × 45,132.98
  4. Step 4: Simplify right side
    129,385.11x = 8,760,126,461.72
  5. Step 5: Solve for x
    x = 8,760,126,461.72/129,385.11
  6. Step 6: Final answer
    x = 67,705.83

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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.