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Finding the Fourth Proportional to 138,796.20, 191,538.54 and 75,133.98

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Solution

The fourth proportional to 138,796.20, 191,538.54 and 75,133.98 is: 103,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,796.20 : 191,538.54 = 75,133.98 : x
  2. Step 2: Convert to fraction form
    138,796.20/191,538.54 = 75,133.98/x
  3. Step 3: Cross multiply
    138,796.20x = 191,538.54 × 75,133.98
  4. Step 4: Simplify right side
    138,796.20x = 14,391,052,833.59
  5. Step 5: Solve for x
    x = 14,391,052,833.59/138,796.20
  6. Step 6: Final answer
    x = 103,684.78

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