Home / 144,163.18-198,945.35-80,500.96

Finding the Fourth Proportional to 144,163.18, 198,945.35 and 80,500.96

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Solution

The fourth proportional to 144,163.18, 198,945.35 and 80,500.96 is: 111,091.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,163.18 : 198,945.35 = 80,500.96 : x
  2. Step 2: Convert to fraction form
    144,163.18/198,945.35 = 80,500.96/x
  3. Step 3: Cross multiply
    144,163.18x = 198,945.35 × 80,500.96
  4. Step 4: Simplify right side
    144,163.18x = 16,015,291,662.54
  5. Step 5: Solve for x
    x = 16,015,291,662.54/144,163.18
  6. Step 6: Final answer
    x = 111,091.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.