Home / 131,028.56-196,151.12-80,267.68

Finding the Fourth Proportional to 131,028.56, 196,151.12 and 80,267.68

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Solution

The fourth proportional to 131,028.56, 196,151.12 and 80,267.68 is: 120,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,028.56 : 196,151.12 = 80,267.68 : x
  2. Step 2: Convert to fraction form
    131,028.56/196,151.12 = 80,267.68/x
  3. Step 3: Cross multiply
    131,028.56x = 196,151.12 × 80,267.68
  4. Step 4: Simplify right side
    131,028.56x = 15,744,595,331.80
  5. Step 5: Solve for x
    x = 15,744,595,331.80/131,028.56
  6. Step 6: Final answer
    x = 120,161.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.