Home / 131,576.60-197,138.10-61,311.80

Finding the Fourth Proportional to 131,576.60, 197,138.10 and 61,311.80

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Solution

The fourth proportional to 131,576.60, 197,138.10 and 61,311.80 is: 91,862.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,576.60 : 197,138.10 = 61,311.80 : x
  2. Step 2: Convert to fraction form
    131,576.60/197,138.10 = 61,311.80/x
  3. Step 3: Cross multiply
    131,576.60x = 197,138.10 × 61,311.80
  4. Step 4: Simplify right side
    131,576.60x = 12,086,891,759.58
  5. Step 5: Solve for x
    x = 12,086,891,759.58/131,576.60
  6. Step 6: Final answer
    x = 91,862.02

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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.