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Finding the Fourth Proportional to 133,023.80, 199,535.70 and 80,406.20

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Solution

The fourth proportional to 133,023.80, 199,535.70 and 80,406.20 is: 120,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,023.80 : 199,535.70 = 80,406.20 : x
  2. Step 2: Convert to fraction form
    133,023.80/199,535.70 = 80,406.20/x
  3. Step 3: Cross multiply
    133,023.80x = 199,535.70 × 80,406.20
  4. Step 4: Simplify right side
    133,023.80x = 16,043,907,401.34
  5. Step 5: Solve for x
    x = 16,043,907,401.34/133,023.80
  6. Step 6: Final answer
    x = 120,609.30

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