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Finding the Fourth Proportional to 117,708.80, 176,563.20 and 75,718.40

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Solution

The fourth proportional to 117,708.80, 176,563.20 and 75,718.40 is: 113,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,708.80 : 176,563.20 = 75,718.40 : x
  2. Step 2: Convert to fraction form
    117,708.80/176,563.20 = 75,718.40/x
  3. Step 3: Cross multiply
    117,708.80x = 176,563.20 × 75,718.40
  4. Step 4: Simplify right side
    117,708.80x = 13,369,083,002.88
  5. Step 5: Solve for x
    x = 13,369,083,002.88/117,708.80
  6. Step 6: Final answer
    x = 113,577.60

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