Home / 204,055.14-306,034.11-85,728.78

Finding the Fourth Proportional to 204,055.14, 306,034.11 and 85,728.78

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Solution

The fourth proportional to 204,055.14, 306,034.11 and 85,728.78 is: 128,572.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,055.14 : 306,034.11 = 85,728.78 : x
  2. Step 2: Convert to fraction form
    204,055.14/306,034.11 = 85,728.78/x
  3. Step 3: Cross multiply
    204,055.14x = 306,034.11 × 85,728.78
  4. Step 4: Simplify right side
    204,055.14x = 26,235,930,888.69
  5. Step 5: Solve for x
    x = 26,235,930,888.69/204,055.14
  6. Step 6: Final answer
    x = 128,572.75

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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.