Home / 205,961.78-284,212.04-115,296.86

Finding the Fourth Proportional to 205,961.78, 284,212.04 and 115,296.86

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Solution

The fourth proportional to 205,961.78, 284,212.04 and 115,296.86 is: 159,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,961.78 : 284,212.04 = 115,296.86 : x
  2. Step 2: Convert to fraction form
    205,961.78/284,212.04 = 115,296.86/x
  3. Step 3: Cross multiply
    205,961.78x = 284,212.04 × 115,296.86
  4. Step 4: Simplify right side
    205,961.78x = 32,768,755,786.19
  5. Step 5: Solve for x
    x = 32,768,755,786.19/205,961.78
  6. Step 6: Final answer
    x = 159,101.15

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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.