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Finding the Fourth Proportional to 172,327.92, 258,441.66 and 67,121.88

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Solution

The fourth proportional to 172,327.92, 258,441.66 and 67,121.88 is: 100,663.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,327.92 : 258,441.66 = 67,121.88 : x
  2. Step 2: Convert to fraction form
    172,327.92/258,441.66 = 67,121.88/x
  3. Step 3: Cross multiply
    172,327.92x = 258,441.66 × 67,121.88
  4. Step 4: Simplify right side
    172,327.92x = 17,347,090,089.52
  5. Step 5: Solve for x
    x = 17,347,090,089.52/172,327.92
  6. Step 6: Final answer
    x = 100,663.26

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