Home / 131,576.96-197,394.60-61,418

Finding the Fourth Proportional to 131,576.96, 197,394.60 and 61,418

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Solution

The fourth proportional to 131,576.96, 197,394.60 and 61,418 is: 92,140.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,576.96 : 197,394.60 = 61,418 : x
  2. Step 2: Convert to fraction form
    131,576.96/197,394.60 = 61,418/x
  3. Step 3: Cross multiply
    131,576.96x = 197,394.60 × 61,418
  4. Step 4: Simplify right side
    131,576.96x = 12,123,581,542.80
  5. Step 5: Solve for x
    x = 12,123,581,542.80/131,576.96
  6. Step 6: Final answer
    x = 92,140.61

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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.