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Finding the Fourth Proportional to 121,214.70, 181,822.05 and 54,729.90

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Solution

The fourth proportional to 121,214.70, 181,822.05 and 54,729.90 is: 82,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,214.70 : 181,822.05 = 54,729.90 : x
  2. Step 2: Convert to fraction form
    121,214.70/181,822.05 = 54,729.90/x
  3. Step 3: Cross multiply
    121,214.70x = 181,822.05 × 54,729.90
  4. Step 4: Simplify right side
    121,214.70x = 9,951,102,614.30
  5. Step 5: Solve for x
    x = 9,951,102,614.30/121,214.70
  6. Step 6: Final answer
    x = 82,094.85

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