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Finding the Fourth Proportional to 121,251.80, 181,877.70 and 68,107.70

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Solution

The fourth proportional to 121,251.80, 181,877.70 and 68,107.70 is: 102,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,251.80 : 181,877.70 = 68,107.70 : x
  2. Step 2: Convert to fraction form
    121,251.80/181,877.70 = 68,107.70/x
  3. Step 3: Cross multiply
    121,251.80x = 181,877.70 × 68,107.70
  4. Step 4: Simplify right side
    121,251.80x = 12,387,271,828.29
  5. Step 5: Solve for x
    x = 12,387,271,828.29/121,251.80
  6. Step 6: Final answer
    x = 102,161.55

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