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Finding the Fourth Proportional to 140,278.78, 193,584.72 and 76,616.73

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Solution

The fourth proportional to 140,278.78, 193,584.72 and 76,616.73 is: 105,731.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,278.78 : 193,584.72 = 76,616.73 : x
  2. Step 2: Convert to fraction form
    140,278.78/193,584.72 = 76,616.73/x
  3. Step 3: Cross multiply
    140,278.78x = 193,584.72 × 76,616.73
  4. Step 4: Simplify right side
    140,278.78x = 14,831,828,224.37
  5. Step 5: Solve for x
    x = 14,831,828,224.37/140,278.78
  6. Step 6: Final answer
    x = 105,731.09

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