Home / 196,439.11-271,087.88-111,556.78

Finding the Fourth Proportional to 196,439.11, 271,087.88 and 111,556.78

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Solution

The fourth proportional to 196,439.11, 271,087.88 and 111,556.78 is: 153,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,439.11 : 271,087.88 = 111,556.78 : x
  2. Step 2: Convert to fraction form
    196,439.11/271,087.88 = 111,556.78/x
  3. Step 3: Cross multiply
    196,439.11x = 271,087.88 × 111,556.78
  4. Step 4: Simplify right side
    196,439.11x = 30,241,689,754.32
  5. Step 5: Solve for x
    x = 30,241,689,754.32/196,439.11
  6. Step 6: Final answer
    x = 153,949.44

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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.