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Finding the Fourth Proportional to 143,920.80, 198,619.20 and 80,256.96

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Solution

The fourth proportional to 143,920.80, 198,619.20 and 80,256.96 is: 110,759.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,920.80 : 198,619.20 = 80,256.96 : x
  2. Step 2: Convert to fraction form
    143,920.80/198,619.20 = 80,256.96/x
  3. Step 3: Cross multiply
    143,920.80x = 198,619.20 × 80,256.96
  4. Step 4: Simplify right side
    143,920.80x = 15,940,573,189.63
  5. Step 5: Solve for x
    x = 15,940,573,189.63/143,920.80
  6. Step 6: Final answer
    x = 110,759.34

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