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Finding the Fourth Proportional to 136,604.30, 204,906.45 and 133,979.90

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Solution

The fourth proportional to 136,604.30, 204,906.45 and 133,979.90 is: 200,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,604.30 : 204,906.45 = 133,979.90 : x
  2. Step 2: Convert to fraction form
    136,604.30/204,906.45 = 133,979.90/x
  3. Step 3: Cross multiply
    136,604.30x = 204,906.45 × 133,979.90
  4. Step 4: Simplify right side
    136,604.30x = 27,453,345,680.36
  5. Step 5: Solve for x
    x = 27,453,345,680.36/136,604.30
  6. Step 6: Final answer
    x = 200,969.85

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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.