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Finding the Fourth Proportional to 169,489.43, 254,337.93 and 68,268.90

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Solution

The fourth proportional to 169,489.43, 254,337.93 and 68,268.90 is: 102,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,489.43 : 254,337.93 = 68,268.90 : x
  2. Step 2: Convert to fraction form
    169,489.43/254,337.93 = 68,268.90/x
  3. Step 3: Cross multiply
    169,489.43x = 254,337.93 × 68,268.90
  4. Step 4: Simplify right side
    169,489.43x = 17,363,370,709.38
  5. Step 5: Solve for x
    x = 17,363,370,709.38/169,489.43
  6. Step 6: Final answer
    x = 102,445.15

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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.