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Finding the Fourth Proportional to 113,892.80, 170,839.20 and 108,449.60

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Solution

The fourth proportional to 113,892.80, 170,839.20 and 108,449.60 is: 162,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,892.80 : 170,839.20 = 108,449.60 : x
  2. Step 2: Convert to fraction form
    113,892.80/170,839.20 = 108,449.60/x
  3. Step 3: Cross multiply
    113,892.80x = 170,839.20 × 108,449.60
  4. Step 4: Simplify right side
    113,892.80x = 18,527,442,904.32
  5. Step 5: Solve for x
    x = 18,527,442,904.32/113,892.80
  6. Step 6: Final answer
    x = 162,674.40

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