Home / 196,215.83-270,695.03-123,489.78

Finding the Fourth Proportional to 196,215.83, 270,695.03 and 123,489.78

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Solution

The fourth proportional to 196,215.83, 270,695.03 and 123,489.78 is: 170,363.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,215.83 : 270,695.03 = 123,489.78 : x
  2. Step 2: Convert to fraction form
    196,215.83/270,695.03 = 123,489.78/x
  3. Step 3: Cross multiply
    196,215.83x = 270,695.03 × 123,489.78
  4. Step 4: Simplify right side
    196,215.83x = 33,428,068,348.32
  5. Step 5: Solve for x
    x = 33,428,068,348.32/196,215.83
  6. Step 6: Final answer
    x = 170,363.77

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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.