Home / 205,890.24-308,234.40-126,767.04

Finding the Fourth Proportional to 205,890.24, 308,234.40 and 126,767.04

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Solution

The fourth proportional to 205,890.24, 308,234.40 and 126,767.04 is: 189,780.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,890.24 : 308,234.40 = 126,767.04 : x
  2. Step 2: Convert to fraction form
    205,890.24/308,234.40 = 126,767.04/x
  3. Step 3: Cross multiply
    205,890.24x = 308,234.40 × 126,767.04
  4. Step 4: Simplify right side
    205,890.24x = 39,073,962,514.18
  5. Step 5: Solve for x
    x = 39,073,962,514.18/205,890.24
  6. Step 6: Final answer
    x = 189,780.55

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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.