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Finding the Fourth Proportional to 99,610.80, 149,416.20 and 92,007.60

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Solution

The fourth proportional to 99,610.80, 149,416.20 and 92,007.60 is: 138,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,610.80 : 149,416.20 = 92,007.60 : x
  2. Step 2: Convert to fraction form
    99,610.80/149,416.20 = 92,007.60/x
  3. Step 3: Cross multiply
    99,610.80x = 149,416.20 × 92,007.60
  4. Step 4: Simplify right side
    99,610.80x = 13,747,425,963.12
  5. Step 5: Solve for x
    x = 13,747,425,963.12/99,610.80
  6. Step 6: Final answer
    x = 138,011.40

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