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Finding the Fourth Proportional to 168,815.80, 253,223.70 and 68,910.40

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Solution

The fourth proportional to 168,815.80, 253,223.70 and 68,910.40 is: 103,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,815.80 : 253,223.70 = 68,910.40 : x
  2. Step 2: Convert to fraction form
    168,815.80/253,223.70 = 68,910.40/x
  3. Step 3: Cross multiply
    168,815.80x = 253,223.70 × 68,910.40
  4. Step 4: Simplify right side
    168,815.80x = 17,449,746,456.48
  5. Step 5: Solve for x
    x = 17,449,746,456.48/168,815.80
  6. Step 6: Final answer
    x = 103,365.60

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