Home / 204,238.68-306,192.78-91,836.60

Finding the Fourth Proportional to 204,238.68, 306,192.78 and 91,836.60

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Solution

The fourth proportional to 204,238.68, 306,192.78 and 91,836.60 is: 137,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,238.68 : 306,192.78 = 91,836.60 : x
  2. Step 2: Convert to fraction form
    204,238.68/306,192.78 = 91,836.60/x
  3. Step 3: Cross multiply
    204,238.68x = 306,192.78 × 91,836.60
  4. Step 4: Simplify right side
    204,238.68x = 28,119,703,859.75
  5. Step 5: Solve for x
    x = 28,119,703,859.75/204,238.68
  6. Step 6: Final answer
    x = 137,680.60

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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.