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Finding the Fourth Proportional to 192,761.12, 288,919.92 and 74,380.16

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Solution

The fourth proportional to 192,761.12, 288,919.92 and 74,380.16 is: 111,484.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,761.12 : 288,919.92 = 74,380.16 : x
  2. Step 2: Convert to fraction form
    192,761.12/288,919.92 = 74,380.16/x
  3. Step 3: Cross multiply
    192,761.12x = 288,919.92 × 74,380.16
  4. Step 4: Simplify right side
    192,761.12x = 21,489,909,876.79
  5. Step 5: Solve for x
    x = 21,489,909,876.79/192,761.12
  6. Step 6: Final answer
    x = 111,484.67

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