Home / 206,165.82-309,367.66-111,396.26

Finding the Fourth Proportional to 206,165.82, 309,367.66 and 111,396.26

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Solution

The fourth proportional to 206,165.82, 309,367.66 and 111,396.26 is: 167,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,165.82 : 309,367.66 = 111,396.26 : x
  2. Step 2: Convert to fraction form
    206,165.82/309,367.66 = 111,396.26/x
  3. Step 3: Cross multiply
    206,165.82x = 309,367.66 × 111,396.26
  4. Step 4: Simplify right side
    206,165.82x = 34,462,400,288.95
  5. Step 5: Solve for x
    x = 34,462,400,288.95/206,165.82
  6. Step 6: Final answer
    x = 167,158.65

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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.