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Finding the Fourth Proportional to 139,428.75, 192,406.41 and 75,765.18

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Solution

The fourth proportional to 139,428.75, 192,406.41 and 75,765.18 is: 104,553.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,428.75 : 192,406.41 = 75,765.18 : x
  2. Step 2: Convert to fraction form
    139,428.75/192,406.41 = 75,765.18/x
  3. Step 3: Cross multiply
    139,428.75x = 192,406.41 × 75,765.18
  4. Step 4: Simplify right side
    139,428.75x = 14,577,706,286.80
  5. Step 5: Solve for x
    x = 14,577,706,286.80/139,428.75
  6. Step 6: Final answer
    x = 104,553.09

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