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Finding the Fourth Proportional to 118,233.05, 163,227.89 and 81,987.17

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Solution

The fourth proportional to 118,233.05, 163,227.89 and 81,987.17 is: 113,188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,233.05 : 163,227.89 = 81,987.17 : x
  2. Step 2: Convert to fraction form
    118,233.05/163,227.89 = 81,987.17/x
  3. Step 3: Cross multiply
    118,233.05x = 163,227.89 × 81,987.17
  4. Step 4: Simplify right side
    118,233.05x = 13,382,592,155.00
  5. Step 5: Solve for x
    x = 13,382,592,155.00/118,233.05
  6. Step 6: Final answer
    x = 113,188.26

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