Home / 196,876.80-271,595.52-128,863.84

Finding the Fourth Proportional to 196,876.80, 271,595.52 and 128,863.84

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Solution

The fourth proportional to 196,876.80, 271,595.52 and 128,863.84 is: 177,770.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,876.80 : 271,595.52 = 128,863.84 : x
  2. Step 2: Convert to fraction form
    196,876.80/271,595.52 = 128,863.84/x
  3. Step 3: Cross multiply
    196,876.80x = 271,595.52 × 128,863.84
  4. Step 4: Simplify right side
    196,876.80x = 34,998,841,634.00
  5. Step 5: Solve for x
    x = 34,998,841,634.00/196,876.80
  6. Step 6: Final answer
    x = 177,770.27

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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.