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Finding the Fourth Proportional to 168,876.88, 253,251.80 and 68,983.70

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Solution

The fourth proportional to 168,876.88, 253,251.80 and 68,983.70 is: 103,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,876.88 : 253,251.80 = 68,983.70 : x
  2. Step 2: Convert to fraction form
    168,876.88/253,251.80 = 68,983.70/x
  3. Step 3: Cross multiply
    168,876.88x = 253,251.80 × 68,983.70
  4. Step 4: Simplify right side
    168,876.88x = 17,470,246,195.66
  5. Step 5: Solve for x
    x = 17,470,246,195.66/168,876.88
  6. Step 6: Final answer
    x = 103,449.60

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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.