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Finding the Fourth Proportional to 129,934.80, 194,902.20 and 63,340.65

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Solution

The fourth proportional to 129,934.80, 194,902.20 and 63,340.65 is: 95,010.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,934.80 : 194,902.20 = 63,340.65 : x
  2. Step 2: Convert to fraction form
    129,934.80/194,902.20 = 63,340.65/x
  3. Step 3: Cross multiply
    129,934.80x = 194,902.20 × 63,340.65
  4. Step 4: Simplify right side
    129,934.80x = 12,345,232,034.43
  5. Step 5: Solve for x
    x = 12,345,232,034.43/129,934.80
  6. Step 6: Final answer
    x = 95,010.98

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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.