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Finding the Fourth Proportional to 128,230.16, 192,321.08 and 34,723.60

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Solution

The fourth proportional to 128,230.16, 192,321.08 and 34,723.60 is: 52,078.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,230.16 : 192,321.08 = 34,723.60 : x
  2. Step 2: Convert to fraction form
    128,230.16/192,321.08 = 34,723.60/x
  3. Step 3: Cross multiply
    128,230.16x = 192,321.08 × 34,723.60
  4. Step 4: Simplify right side
    128,230.16x = 6,678,080,253.49
  5. Step 5: Solve for x
    x = 6,678,080,253.49/128,230.16
  6. Step 6: Final answer
    x = 52,078.86

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