Home / 204,542.46-306,806.40-71,422.20

Finding the Fourth Proportional to 204,542.46, 306,806.40 and 71,422.20

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Solution

The fourth proportional to 204,542.46, 306,806.40 and 71,422.20 is: 107,130.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,542.46 : 306,806.40 = 71,422.20 : x
  2. Step 2: Convert to fraction form
    204,542.46/306,806.40 = 71,422.20/x
  3. Step 3: Cross multiply
    204,542.46x = 306,806.40 × 71,422.20
  4. Step 4: Simplify right side
    204,542.46x = 21,912,788,062.08
  5. Step 5: Solve for x
    x = 21,912,788,062.08/204,542.46
  6. Step 6: Final answer
    x = 107,130.75

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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.