Home / 131,442.70-197,176.20-52,540.60

Finding the Fourth Proportional to 131,442.70, 197,176.20 and 52,540.60

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Solution

The fourth proportional to 131,442.70, 197,176.20 and 52,540.60 is: 78,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,442.70 : 197,176.20 = 52,540.60 : x
  2. Step 2: Convert to fraction form
    131,442.70/197,176.20 = 52,540.60/x
  3. Step 3: Cross multiply
    131,442.70x = 197,176.20 × 52,540.60
  4. Step 4: Simplify right side
    131,442.70x = 10,359,755,853.72
  5. Step 5: Solve for x
    x = 10,359,755,853.72/131,442.70
  6. Step 6: Final answer
    x = 78,815.76

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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.