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Finding the Fourth Proportional to 140,647.88, 194,094.32 and 76,989.72

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Solution

The fourth proportional to 140,647.88, 194,094.32 and 76,989.72 is: 106,245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,647.88 : 194,094.32 = 76,989.72 : x
  2. Step 2: Convert to fraction form
    140,647.88/194,094.32 = 76,989.72/x
  3. Step 3: Cross multiply
    140,647.88x = 194,094.32 × 76,989.72
  4. Step 4: Simplify right side
    140,647.88x = 14,943,267,350.39
  5. Step 5: Solve for x
    x = 14,943,267,350.39/140,647.88
  6. Step 6: Final answer
    x = 106,245.95

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