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Finding the Fourth Proportional to 117,640.20, 176,535.90 and 65,087.40

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Solution

The fourth proportional to 117,640.20, 176,535.90 and 65,087.40 is: 97,672.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,640.20 : 176,535.90 = 65,087.40 : x
  2. Step 2: Convert to fraction form
    117,640.20/176,535.90 = 65,087.40/x
  3. Step 3: Cross multiply
    117,640.20x = 176,535.90 × 65,087.40
  4. Step 4: Simplify right side
    117,640.20x = 11,490,262,737.66
  5. Step 5: Solve for x
    x = 11,490,262,737.66/117,640.20
  6. Step 6: Final answer
    x = 97,672.93

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