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Finding the Fourth Proportional to 168,242.64, 252,398.79 and 68,402.85

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Solution

The fourth proportional to 168,242.64, 252,398.79 and 68,402.85 is: 102,618.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,242.64 : 252,398.79 = 68,402.85 : x
  2. Step 2: Convert to fraction form
    168,242.64/252,398.79 = 68,402.85/x
  3. Step 3: Cross multiply
    168,242.64x = 252,398.79 × 68,402.85
  4. Step 4: Simplify right side
    168,242.64x = 17,264,796,572.55
  5. Step 5: Solve for x
    x = 17,264,796,572.55/168,242.64
  6. Step 6: Final answer
    x = 102,618.44

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1.5x scale

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.