Home / 203,821.72-305,752.02-79,172.44

Finding the Fourth Proportional to 203,821.72, 305,752.02 and 79,172.44

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Solution

The fourth proportional to 203,821.72, 305,752.02 and 79,172.44 is: 118,766.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,821.72 : 305,752.02 = 79,172.44 : x
  2. Step 2: Convert to fraction form
    203,821.72/305,752.02 = 79,172.44/x
  3. Step 3: Cross multiply
    203,821.72x = 305,752.02 × 79,172.44
  4. Step 4: Simplify right side
    203,821.72x = 24,207,133,458.33
  5. Step 5: Solve for x
    x = 24,207,133,458.33/203,821.72
  6. Step 6: Final answer
    x = 118,766.21

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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.