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Finding the Fourth Proportional to 113,902.80, 170,854.20 and 108,200.40

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Solution

The fourth proportional to 113,902.80, 170,854.20 and 108,200.40 is: 162,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,902.80 : 170,854.20 = 108,200.40 : x
  2. Step 2: Convert to fraction form
    113,902.80/170,854.20 = 108,200.40/x
  3. Step 3: Cross multiply
    113,902.80x = 170,854.20 × 108,200.40
  4. Step 4: Simplify right side
    113,902.80x = 18,486,492,781.68
  5. Step 5: Solve for x
    x = 18,486,492,781.68/113,902.80
  6. Step 6: Final answer
    x = 162,300.60

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