Home / 193,221.40-289,832.10-137,234.20

Finding the Fourth Proportional to 193,221.40, 289,832.10 and 137,234.20

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Solution

The fourth proportional to 193,221.40, 289,832.10 and 137,234.20 is: 205,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,221.40 : 289,832.10 = 137,234.20 : x
  2. Step 2: Convert to fraction form
    193,221.40/289,832.10 = 137,234.20/x
  3. Step 3: Cross multiply
    193,221.40x = 289,832.10 × 137,234.20
  4. Step 4: Simplify right side
    193,221.40x = 39,774,876,377.82
  5. Step 5: Solve for x
    x = 39,774,876,377.82/193,221.40
  6. Step 6: Final answer
    x = 205,851.30

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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.