Home / 206,601.30-309,383.55-136,098.90

Finding the Fourth Proportional to 206,601.30, 309,383.55 and 136,098.90

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Solution

The fourth proportional to 206,601.30, 309,383.55 and 136,098.90 is: 203,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,601.30 : 309,383.55 = 136,098.90 : x
  2. Step 2: Convert to fraction form
    206,601.30/309,383.55 = 136,098.90/x
  3. Step 3: Cross multiply
    206,601.30x = 309,383.55 × 136,098.90
  4. Step 4: Simplify right side
    206,601.30x = 42,106,760,833.10
  5. Step 5: Solve for x
    x = 42,106,760,833.10/206,601.30
  6. Step 6: Final answer
    x = 203,806.85

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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.