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Finding the Fourth Proportional to 139,773.72, 192,890.87 and 79,338.67

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Solution

The fourth proportional to 139,773.72, 192,890.87 and 79,338.67 is: 109,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,773.72 : 192,890.87 = 79,338.67 : x
  2. Step 2: Convert to fraction form
    139,773.72/192,890.87 = 79,338.67/x
  3. Step 3: Cross multiply
    139,773.72x = 192,890.87 × 79,338.67
  4. Step 4: Simplify right side
    139,773.72x = 15,303,705,080.94
  5. Step 5: Solve for x
    x = 15,303,705,080.94/139,773.72
  6. Step 6: Final answer
    x = 109,489.14

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