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Finding the Fourth Proportional to 173,896.80, 260,893.80 and 85,153.20

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Solution

The fourth proportional to 173,896.80, 260,893.80 and 85,153.20 is: 127,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,896.80 : 260,893.80 = 85,153.20 : x
  2. Step 2: Convert to fraction form
    173,896.80/260,893.80 = 85,153.20/x
  3. Step 3: Cross multiply
    173,896.80x = 260,893.80 × 85,153.20
  4. Step 4: Simplify right side
    173,896.80x = 22,215,941,930.16
  5. Step 5: Solve for x
    x = 22,215,941,930.16/173,896.80
  6. Step 6: Final answer
    x = 127,753.60

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