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Finding the Fourth Proportional to 117,478.80, 176,218.20 and 67,712.40

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Solution

The fourth proportional to 117,478.80, 176,218.20 and 67,712.40 is: 101,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,478.80 : 176,218.20 = 67,712.40 : x
  2. Step 2: Convert to fraction form
    117,478.80/176,218.20 = 67,712.40/x
  3. Step 3: Cross multiply
    117,478.80x = 176,218.20 × 67,712.40
  4. Step 4: Simplify right side
    117,478.80x = 11,932,157,245.68
  5. Step 5: Solve for x
    x = 11,932,157,245.68/117,478.80
  6. Step 6: Final answer
    x = 101,568.60

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