Home / 131,427.20-196,849.20-108,099.20

Finding the Fourth Proportional to 131,427.20, 196,849.20 and 108,099.20

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Solution

The fourth proportional to 131,427.20, 196,849.20 and 108,099.20 is: 161,908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,427.20 : 196,849.20 = 108,099.20 : x
  2. Step 2: Convert to fraction form
    131,427.20/196,849.20 = 108,099.20/x
  3. Step 3: Cross multiply
    131,427.20x = 196,849.20 × 108,099.20
  4. Step 4: Simplify right side
    131,427.20x = 21,279,241,040.64
  5. Step 5: Solve for x
    x = 21,279,241,040.64/131,427.20
  6. Step 6: Final answer
    x = 161,908.96

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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.