Home / 131,660.07-197,488.11-31,819.56

Finding the Fourth Proportional to 131,660.07, 197,488.11 and 31,819.56

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Solution

The fourth proportional to 131,660.07, 197,488.11 and 31,819.56 is: 47,728.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,660.07 : 197,488.11 = 31,819.56 : x
  2. Step 2: Convert to fraction form
    131,660.07/197,488.11 = 31,819.56/x
  3. Step 3: Cross multiply
    131,660.07x = 197,488.11 × 31,819.56
  4. Step 4: Simplify right side
    131,660.07x = 6,283,984,765.43
  5. Step 5: Solve for x
    x = 6,283,984,765.43/131,660.07
  6. Step 6: Final answer
    x = 47,728.86

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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.