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Finding the Fourth Proportional to 169,642.24, 254,414.40 and 68,440.32

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Solution

The fourth proportional to 169,642.24, 254,414.40 and 68,440.32 is: 102,640.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,642.24 : 254,414.40 = 68,440.32 : x
  2. Step 2: Convert to fraction form
    169,642.24/254,414.40 = 68,440.32/x
  3. Step 3: Cross multiply
    169,642.24x = 254,414.40 × 68,440.32
  4. Step 4: Simplify right side
    169,642.24x = 17,412,202,948.61
  5. Step 5: Solve for x
    x = 17,412,202,948.61/169,642.24
  6. Step 6: Final answer
    x = 102,640.73

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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.