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Finding the Fourth Proportional to 116,199.28, 174,067.80 and 91,121.68

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Solution

The fourth proportional to 116,199.28, 174,067.80 and 91,121.68 is: 136,501.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,199.28 : 174,067.80 = 91,121.68 : x
  2. Step 2: Convert to fraction form
    116,199.28/174,067.80 = 91,121.68/x
  3. Step 3: Cross multiply
    116,199.28x = 174,067.80 × 91,121.68
  4. Step 4: Simplify right side
    116,199.28x = 15,861,350,369.90
  5. Step 5: Solve for x
    x = 15,861,350,369.90/116,199.28
  6. Step 6: Final answer
    x = 136,501.28

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