Home / 196,829.78-271,640.13-111,941.78

Finding the Fourth Proportional to 196,829.78, 271,640.13 and 111,941.78

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Solution

The fourth proportional to 196,829.78, 271,640.13 and 111,941.78 is: 154,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,829.78 : 271,640.13 = 111,941.78 : x
  2. Step 2: Convert to fraction form
    196,829.78/271,640.13 = 111,941.78/x
  3. Step 3: Cross multiply
    196,829.78x = 271,640.13 × 111,941.78
  4. Step 4: Simplify right side
    196,829.78x = 30,407,879,671.63
  5. Step 5: Solve for x
    x = 30,407,879,671.63/196,829.78
  6. Step 6: Final answer
    x = 154,488.21

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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.