Home / 131,481.40-197,222.10-52,652.20

Finding the Fourth Proportional to 131,481.40, 197,222.10 and 52,652.20

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Solution

The fourth proportional to 131,481.40, 197,222.10 and 52,652.20 is: 78,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,481.40 : 197,222.10 = 52,652.20 : x
  2. Step 2: Convert to fraction form
    131,481.40/197,222.10 = 52,652.20/x
  3. Step 3: Cross multiply
    131,481.40x = 197,222.10 × 52,652.20
  4. Step 4: Simplify right side
    131,481.40x = 10,384,177,453.62
  5. Step 5: Solve for x
    x = 10,384,177,453.62/131,481.40
  6. Step 6: Final answer
    x = 78,978.30

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1.5x scale

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.