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Finding the Fourth Proportional to 139,651.59, 192,720.11 and 75,989.85

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Solution

The fourth proportional to 139,651.59, 192,720.11 and 75,989.85 is: 104,866.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,651.59 : 192,720.11 = 75,989.85 : x
  2. Step 2: Convert to fraction form
    139,651.59/192,720.11 = 75,989.85/x
  3. Step 3: Cross multiply
    139,651.59x = 192,720.11 × 75,989.85
  4. Step 4: Simplify right side
    139,651.59x = 14,644,771,575.68
  5. Step 5: Solve for x
    x = 14,644,771,575.68/139,651.59
  6. Step 6: Final answer
    x = 104,866.48

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