Home / 206,867.11-310,300.68-66,625.73

Finding the Fourth Proportional to 206,867.11, 310,300.68 and 66,625.73

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Solution

The fourth proportional to 206,867.11, 310,300.68 and 66,625.73 is: 99,938.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,867.11 : 310,300.68 = 66,625.73 : x
  2. Step 2: Convert to fraction form
    206,867.11/310,300.68 = 66,625.73/x
  3. Step 3: Cross multiply
    206,867.11x = 310,300.68 × 66,625.73
  4. Step 4: Simplify right side
    206,867.11x = 20,674,010,806.99
  5. Step 5: Solve for x
    x = 20,674,010,806.99/206,867.11
  6. Step 6: Final answer
    x = 99,938.61

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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.