Home / 196,928.32-271,286.94-156,629.20

Finding the Fourth Proportional to 196,928.32, 271,286.94 and 156,629.20

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Solution

The fourth proportional to 196,928.32, 271,286.94 and 156,629.20 is: 215,771.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,928.32 : 271,286.94 = 156,629.20 : x
  2. Step 2: Convert to fraction form
    196,928.32/271,286.94 = 156,629.20/x
  3. Step 3: Cross multiply
    196,928.32x = 271,286.94 × 156,629.20
  4. Step 4: Simplify right side
    196,928.32x = 42,491,456,382.65
  5. Step 5: Solve for x
    x = 42,491,456,382.65/196,928.32
  6. Step 6: Final answer
    x = 215,771.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.