Home / 206,067.18-309,011.67-71,145.48

Finding the Fourth Proportional to 206,067.18, 309,011.67 and 71,145.48

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Solution

The fourth proportional to 206,067.18, 309,011.67 and 71,145.48 is: 106,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,067.18 : 309,011.67 = 71,145.48 : x
  2. Step 2: Convert to fraction form
    206,067.18/309,011.67 = 71,145.48/x
  3. Step 3: Cross multiply
    206,067.18x = 309,011.67 × 71,145.48
  4. Step 4: Simplify right side
    206,067.18x = 21,984,783,587.75
  5. Step 5: Solve for x
    x = 21,984,783,587.75/206,067.18
  6. Step 6: Final answer
    x = 106,687.46

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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.