Home / 206,311.90-309,469-93,913.52

Finding the Fourth Proportional to 206,311.90, 309,469 and 93,913.52

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Solution

The fourth proportional to 206,311.90, 309,469 and 93,913.52 is: 140,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,311.90 : 309,469 = 93,913.52 : x
  2. Step 2: Convert to fraction form
    206,311.90/309,469 = 93,913.52/x
  3. Step 3: Cross multiply
    206,311.90x = 309,469 × 93,913.52
  4. Step 4: Simplify right side
    206,311.90x = 29,063,323,120.88
  5. Step 5: Solve for x
    x = 29,063,323,120.88/206,311.90
  6. Step 6: Final answer
    x = 140,870.80

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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.