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Finding the Fourth Proportional to 129,404.61, 194,104.98 and 40,663.44

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Solution

The fourth proportional to 129,404.61, 194,104.98 and 40,663.44 is: 60,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,404.61 : 194,104.98 = 40,663.44 : x
  2. Step 2: Convert to fraction form
    129,404.61/194,104.98 = 40,663.44/x
  3. Step 3: Cross multiply
    129,404.61x = 194,104.98 × 40,663.44
  4. Step 4: Simplify right side
    129,404.61x = 7,892,976,207.93
  5. Step 5: Solve for x
    x = 7,892,976,207.93/129,404.61
  6. Step 6: Final answer
    x = 60,994.55

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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.