Home / 205,524.20-308,099.48-79,083.78

Finding the Fourth Proportional to 205,524.20, 308,099.48 and 79,083.78

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Solution

The fourth proportional to 205,524.20, 308,099.48 and 79,083.78 is: 118,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,524.20 : 308,099.48 = 79,083.78 : x
  2. Step 2: Convert to fraction form
    205,524.20/308,099.48 = 79,083.78/x
  3. Step 3: Cross multiply
    205,524.20x = 308,099.48 × 79,083.78
  4. Step 4: Simplify right side
    205,524.20x = 24,365,671,099.02
  5. Step 5: Solve for x
    x = 24,365,671,099.02/205,524.20
  6. Step 6: Final answer
    x = 118,553.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.