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Finding the Fourth Proportional to 148,906.88, 205,492.16 and 81,843.20

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Solution

The fourth proportional to 148,906.88, 205,492.16 and 81,843.20 is: 112,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,906.88 : 205,492.16 = 81,843.20 : x
  2. Step 2: Convert to fraction form
    148,906.88/205,492.16 = 81,843.20/x
  3. Step 3: Cross multiply
    148,906.88x = 205,492.16 × 81,843.20
  4. Step 4: Simplify right side
    148,906.88x = 16,818,135,949.31
  5. Step 5: Solve for x
    x = 16,818,135,949.31/148,906.88
  6. Step 6: Final answer
    x = 112,943.98

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