Home / 196,217.64-270,832.10-115,698.78

Finding the Fourth Proportional to 196,217.64, 270,832.10 and 115,698.78

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Solution

The fourth proportional to 196,217.64, 270,832.10 and 115,698.78 is: 159,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,217.64 : 270,832.10 = 115,698.78 : x
  2. Step 2: Convert to fraction form
    196,217.64/270,832.10 = 115,698.78/x
  3. Step 3: Cross multiply
    196,217.64x = 270,832.10 × 115,698.78
  4. Step 4: Simplify right side
    196,217.64x = 31,334,942,976.34
  5. Step 5: Solve for x
    x = 31,334,942,976.34/196,217.64
  6. Step 6: Final answer
    x = 159,694.83

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1.5x scale

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.