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Finding the Fourth Proportional to 107,446.80, 161,170.20 and 57,680.40

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Solution

The fourth proportional to 107,446.80, 161,170.20 and 57,680.40 is: 86,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,446.80 : 161,170.20 = 57,680.40 : x
  2. Step 2: Convert to fraction form
    107,446.80/161,170.20 = 57,680.40/x
  3. Step 3: Cross multiply
    107,446.80x = 161,170.20 × 57,680.40
  4. Step 4: Simplify right side
    107,446.80x = 9,296,361,604.08
  5. Step 5: Solve for x
    x = 9,296,361,604.08/107,446.80
  6. Step 6: Final answer
    x = 86,520.60

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