Home / 196,922.75-271,643.96-129,049.20

Finding the Fourth Proportional to 196,922.75, 271,643.96 and 129,049.20

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Solution

The fourth proportional to 196,922.75, 271,643.96 and 129,049.20 is: 178,016.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,922.75 : 271,643.96 = 129,049.20 : x
  2. Step 2: Convert to fraction form
    196,922.75/271,643.96 = 129,049.20/x
  3. Step 3: Cross multiply
    196,922.75x = 271,643.96 × 129,049.20
  4. Step 4: Simplify right side
    196,922.75x = 35,055,435,722.83
  5. Step 5: Solve for x
    x = 35,055,435,722.83/196,922.75
  6. Step 6: Final answer
    x = 178,016.18

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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.