Home / 204,021.92-306,021-91,673.12

Finding the Fourth Proportional to 204,021.92, 306,021 and 91,673.12

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Solution

The fourth proportional to 204,021.92, 306,021 and 91,673.12 is: 137,504.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,021.92 : 306,021 = 91,673.12 : x
  2. Step 2: Convert to fraction form
    204,021.92/306,021 = 91,673.12/x
  3. Step 3: Cross multiply
    204,021.92x = 306,021 × 91,673.12
  4. Step 4: Simplify right side
    204,021.92x = 28,053,899,855.52
  5. Step 5: Solve for x
    x = 28,053,899,855.52/204,021.92
  6. Step 6: Final answer
    x = 137,504.34

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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.