Home / 206,170.84-309,375.18-111,401.26

Finding the Fourth Proportional to 206,170.84, 309,375.18 and 111,401.26

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Solution

The fourth proportional to 206,170.84, 309,375.18 and 111,401.26 is: 167,166.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,170.84 : 309,375.18 = 111,401.26 : x
  2. Step 2: Convert to fraction form
    206,170.84/309,375.18 = 111,401.26/x
  3. Step 3: Cross multiply
    206,170.84x = 309,375.18 × 111,401.26
  4. Step 4: Simplify right side
    206,170.84x = 34,464,784,864.73
  5. Step 5: Solve for x
    x = 34,464,784,864.73/206,170.84
  6. Step 6: Final answer
    x = 167,166.15

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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.