Home / 131,806.22-197,769.57-71,744.72

Finding the Fourth Proportional to 131,806.22, 197,769.57 and 71,744.72

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Solution

The fourth proportional to 131,806.22, 197,769.57 and 71,744.72 is: 107,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,806.22 : 197,769.57 = 71,744.72 : x
  2. Step 2: Convert to fraction form
    131,806.22/197,769.57 = 71,744.72/x
  3. Step 3: Cross multiply
    131,806.22x = 197,769.57 × 71,744.72
  4. Step 4: Simplify right side
    131,806.22x = 14,188,921,435.32
  5. Step 5: Solve for x
    x = 14,188,921,435.32/131,806.22
  6. Step 6: Final answer
    x = 107,649.87

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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.