Home / 144,183.48-198,958.98-80,519.91

Finding the Fourth Proportional to 144,183.48, 198,958.98 and 80,519.91

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Solution

The fourth proportional to 144,183.48, 198,958.98 and 80,519.91 is: 111,109.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,183.48 : 198,958.98 = 80,519.91 : x
  2. Step 2: Convert to fraction form
    144,183.48/198,958.98 = 80,519.91/x
  3. Step 3: Cross multiply
    144,183.48x = 198,958.98 × 80,519.91
  4. Step 4: Simplify right side
    144,183.48x = 16,020,159,163.29
  5. Step 5: Solve for x
    x = 16,020,159,163.29/144,183.48
  6. Step 6: Final answer
    x = 111,109.53

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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.