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Finding the Fourth Proportional to 129,456.30, 193,904.04 and 62,756.90

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Solution

The fourth proportional to 129,456.30, 193,904.04 and 62,756.90 is: 93,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,456.30 : 193,904.04 = 62,756.90 : x
  2. Step 2: Convert to fraction form
    129,456.30/193,904.04 = 62,756.90/x
  3. Step 3: Cross multiply
    129,456.30x = 193,904.04 × 62,756.90
  4. Step 4: Simplify right side
    129,456.30x = 12,168,816,447.88
  5. Step 5: Solve for x
    x = 12,168,816,447.88/129,456.30
  6. Step 6: Final answer
    x = 93,999.41

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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.