Home / 206,761.23-309,909.38-105,274.41

Finding the Fourth Proportional to 206,761.23, 309,909.38 and 105,274.41

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Solution

The fourth proportional to 206,761.23, 309,909.38 and 105,274.41 is: 157,793.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,761.23 : 309,909.38 = 105,274.41 : x
  2. Step 2: Convert to fraction form
    206,761.23/309,909.38 = 105,274.41/x
  3. Step 3: Cross multiply
    206,761.23x = 309,909.38 × 105,274.41
  4. Step 4: Simplify right side
    206,761.23x = 32,625,526,606.59
  5. Step 5: Solve for x
    x = 32,625,526,606.59/206,761.23
  6. Step 6: Final answer
    x = 157,793.25

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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.