Home / 199,679.40-275,568.82-109,043.80

Finding the Fourth Proportional to 199,679.40, 275,568.82 and 109,043.80

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Solution

The fourth proportional to 199,679.40, 275,568.82 and 109,043.80 is: 150,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,679.40 : 275,568.82 = 109,043.80 : x
  2. Step 2: Convert to fraction form
    199,679.40/275,568.82 = 109,043.80/x
  3. Step 3: Cross multiply
    199,679.40x = 275,568.82 × 109,043.80
  4. Step 4: Simplify right side
    199,679.40x = 30,049,071,294.32
  5. Step 5: Solve for x
    x = 30,049,071,294.32/199,679.40
  6. Step 6: Final answer
    x = 150,486.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.