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Finding the Fourth Proportional to 122,857.25, 184,200.36 and 54,431.66

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Solution

The fourth proportional to 122,857.25, 184,200.36 and 54,431.66 is: 81,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,857.25 : 184,200.36 = 54,431.66 : x
  2. Step 2: Convert to fraction form
    122,857.25/184,200.36 = 54,431.66/x
  3. Step 3: Cross multiply
    122,857.25x = 184,200.36 × 54,431.66
  4. Step 4: Simplify right side
    122,857.25x = 10,026,331,367.40
  5. Step 5: Solve for x
    x = 10,026,331,367.40/122,857.25
  6. Step 6: Final answer
    x = 81,609.60

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