Home / 225,979.68-338,836.62-85,748.16

Finding the Fourth Proportional to 225,979.68, 338,836.62 and 85,748.16

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Solution

The fourth proportional to 225,979.68, 338,836.62 and 85,748.16 is: 128,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,979.68 : 338,836.62 = 85,748.16 : x
  2. Step 2: Convert to fraction form
    225,979.68/338,836.62 = 85,748.16/x
  3. Step 3: Cross multiply
    225,979.68x = 338,836.62 × 85,748.16
  4. Step 4: Simplify right side
    225,979.68x = 29,054,616,705.62
  5. Step 5: Solve for x
    x = 29,054,616,705.62/225,979.68
  6. Step 6: Final answer
    x = 128,571.81

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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.