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Finding the Fourth Proportional to 168,388.92, 252,363.96 and 68,432.28

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Solution

The fourth proportional to 168,388.92, 252,363.96 and 68,432.28 is: 102,559.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,388.92 : 252,363.96 = 68,432.28 : x
  2. Step 2: Convert to fraction form
    168,388.92/252,363.96 = 68,432.28/x
  3. Step 3: Cross multiply
    168,388.92x = 252,363.96 × 68,432.28
  4. Step 4: Simplify right side
    168,388.92x = 17,269,841,172.63
  5. Step 5: Solve for x
    x = 17,269,841,172.63/168,388.92
  6. Step 6: Final answer
    x = 102,559.25

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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.