Home / 196,830.78-271,641.51-111,942.78

Finding the Fourth Proportional to 196,830.78, 271,641.51 and 111,942.78

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Solution

The fourth proportional to 196,830.78, 271,641.51 and 111,942.78 is: 154,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,830.78 : 271,641.51 = 111,942.78 : x
  2. Step 2: Convert to fraction form
    196,830.78/271,641.51 = 111,942.78/x
  3. Step 3: Cross multiply
    196,830.78x = 271,641.51 × 111,942.78
  4. Step 4: Simplify right side
    196,830.78x = 30,408,305,792.80
  5. Step 5: Solve for x
    x = 30,408,305,792.80/196,830.78
  6. Step 6: Final answer
    x = 154,489.59

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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.