Home / 131,888.20-197,832.30-126,129.10

Finding the Fourth Proportional to 131,888.20, 197,832.30 and 126,129.10

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Solution

The fourth proportional to 131,888.20, 197,832.30 and 126,129.10 is: 189,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,888.20 : 197,832.30 = 126,129.10 : x
  2. Step 2: Convert to fraction form
    131,888.20/197,832.30 = 126,129.10/x
  3. Step 3: Cross multiply
    131,888.20x = 197,832.30 × 126,129.10
  4. Step 4: Simplify right side
    131,888.20x = 24,952,409,949.93
  5. Step 5: Solve for x
    x = 24,952,409,949.93/131,888.20
  6. Step 6: Final answer
    x = 189,193.65

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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.