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Finding the Fourth Proportional to 125,796.47, 188,694.66 and 86,233.64

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Solution

The fourth proportional to 125,796.47, 188,694.66 and 86,233.64 is: 129,350.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,796.47 : 188,694.66 = 86,233.64 : x
  2. Step 2: Convert to fraction form
    125,796.47/188,694.66 = 86,233.64/x
  3. Step 3: Cross multiply
    125,796.47x = 188,694.66 × 86,233.64
  4. Step 4: Simplify right side
    125,796.47x = 16,271,827,380.36
  5. Step 5: Solve for x
    x = 16,271,827,380.36/125,796.47
  6. Step 6: Final answer
    x = 129,350.43

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