Home / 205,879.24-308,217.90-126,756.04

Finding the Fourth Proportional to 205,879.24, 308,217.90 and 126,756.04

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Solution

The fourth proportional to 205,879.24, 308,217.90 and 126,756.04 is: 189,764.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,879.24 : 308,217.90 = 126,756.04 : x
  2. Step 2: Convert to fraction form
    205,879.24/308,217.90 = 126,756.04/x
  3. Step 3: Cross multiply
    205,879.24x = 308,217.90 × 126,756.04
  4. Step 4: Simplify right side
    205,879.24x = 39,068,480,461.12
  5. Step 5: Solve for x
    x = 39,068,480,461.12/205,879.24
  6. Step 6: Final answer
    x = 189,764.06

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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.