Home / 131,576.20-197,364.06-38,081.80

Finding the Fourth Proportional to 131,576.20, 197,364.06 and 38,081.80

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Solution

The fourth proportional to 131,576.20, 197,364.06 and 38,081.80 is: 57,122.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,576.20 : 197,364.06 = 38,081.80 : x
  2. Step 2: Convert to fraction form
    131,576.20/197,364.06 = 38,081.80/x
  3. Step 3: Cross multiply
    131,576.20x = 197,364.06 × 38,081.80
  4. Step 4: Simplify right side
    131,576.20x = 7,515,978,660.11
  5. Step 5: Solve for x
    x = 7,515,978,660.11/131,576.20
  6. Step 6: Final answer
    x = 57,122.63

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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.