Home / 204,046.14-306,020.61-85,719.78

Finding the Fourth Proportional to 204,046.14, 306,020.61 and 85,719.78

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Solution

The fourth proportional to 204,046.14, 306,020.61 and 85,719.78 is: 128,559.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,046.14 : 306,020.61 = 85,719.78 : x
  2. Step 2: Convert to fraction form
    204,046.14/306,020.61 = 85,719.78/x
  3. Step 3: Cross multiply
    204,046.14x = 306,020.61 × 85,719.78
  4. Step 4: Simplify right side
    204,046.14x = 26,232,019,364.67
  5. Step 5: Solve for x
    x = 26,232,019,364.67/204,046.14
  6. Step 6: Final answer
    x = 128,559.25

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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.