Home / 203,948.96-305,922.22-79,289.96

Finding the Fourth Proportional to 203,948.96, 305,922.22 and 79,289.96

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Solution

The fourth proportional to 203,948.96, 305,922.22 and 79,289.96 is: 118,934.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,948.96 : 305,922.22 = 79,289.96 : x
  2. Step 2: Convert to fraction form
    203,948.96/305,922.22 = 79,289.96/x
  3. Step 3: Cross multiply
    203,948.96x = 305,922.22 × 79,289.96
  4. Step 4: Simplify right side
    203,948.96x = 24,256,560,586.91
  5. Step 5: Solve for x
    x = 24,256,560,586.91/203,948.96
  6. Step 6: Final answer
    x = 118,934.47

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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.