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Finding the Fourth Proportional to 114,991.42, 158,761.07 and 78,753.64

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Solution

The fourth proportional to 114,991.42, 158,761.07 and 78,753.64 is: 108,729.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,991.42 : 158,761.07 = 78,753.64 : x
  2. Step 2: Convert to fraction form
    114,991.42/158,761.07 = 78,753.64/x
  3. Step 3: Cross multiply
    114,991.42x = 158,761.07 × 78,753.64
  4. Step 4: Simplify right side
    114,991.42x = 12,503,012,152.79
  5. Step 5: Solve for x
    x = 12,503,012,152.79/114,991.42
  6. Step 6: Final answer
    x = 108,729.96

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