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Finding the Fourth Proportional to 138,822.80, 191,575.60 and 75,160.68

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Solution

The fourth proportional to 138,822.80, 191,575.60 and 75,160.68 is: 103,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,822.80 : 191,575.60 = 75,160.68 : x
  2. Step 2: Convert to fraction form
    138,822.80/191,575.60 = 75,160.68/x
  3. Step 3: Cross multiply
    138,822.80x = 191,575.60 × 75,160.68
  4. Step 4: Simplify right side
    138,822.80x = 14,398,952,367.41
  5. Step 5: Solve for x
    x = 14,398,952,367.41/138,822.80
  6. Step 6: Final answer
    x = 103,721.81

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