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Finding the Fourth Proportional to 128,086.88, 192,154.82 and 49,194.90

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Solution

The fourth proportional to 128,086.88, 192,154.82 and 49,194.90 is: 73,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,086.88 : 192,154.82 = 49,194.90 : x
  2. Step 2: Convert to fraction form
    128,086.88/192,154.82 = 49,194.90/x
  3. Step 3: Cross multiply
    128,086.88x = 192,154.82 × 49,194.90
  4. Step 4: Simplify right side
    128,086.88x = 9,453,036,908.44
  5. Step 5: Solve for x
    x = 9,453,036,908.44/128,086.88
  6. Step 6: Final answer
    x = 73,801.76

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