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Finding the Fourth Proportional to 135,445.97, 186,922.13 and 81,730.06

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Solution

The fourth proportional to 135,445.97, 186,922.13 and 81,730.06 is: 112,791.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,445.97 : 186,922.13 = 81,730.06 : x
  2. Step 2: Convert to fraction form
    135,445.97/186,922.13 = 81,730.06/x
  3. Step 3: Cross multiply
    135,445.97x = 186,922.13 × 81,730.06
  4. Step 4: Simplify right side
    135,445.97x = 15,277,157,535.44
  5. Step 5: Solve for x
    x = 15,277,157,535.44/135,445.97
  6. Step 6: Final answer
    x = 112,791.52

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