Home / 204,072.90-305,854.20-104,272.80

Finding the Fourth Proportional to 204,072.90, 305,854.20 and 104,272.80

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Solution

The fourth proportional to 204,072.90, 305,854.20 and 104,272.80 is: 156,278.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,072.90 : 305,854.20 = 104,272.80 : x
  2. Step 2: Convert to fraction form
    204,072.90/305,854.20 = 104,272.80/x
  3. Step 3: Cross multiply
    204,072.90x = 305,854.20 × 104,272.80
  4. Step 4: Simplify right side
    204,072.90x = 31,892,273,825.76
  5. Step 5: Solve for x
    x = 31,892,273,825.76/204,072.90
  6. Step 6: Final answer
    x = 156,278.83

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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.