Home / 215,212.61-322,806.47-82,106.33

Finding the Fourth Proportional to 215,212.61, 322,806.47 and 82,106.33

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Solution

The fourth proportional to 215,212.61, 322,806.47 and 82,106.33 is: 123,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,212.61 : 322,806.47 = 82,106.33 : x
  2. Step 2: Convert to fraction form
    215,212.61/322,806.47 = 82,106.33/x
  3. Step 3: Cross multiply
    215,212.61x = 322,806.47 × 82,106.33
  4. Step 4: Simplify right side
    215,212.61x = 26,504,452,527.39
  5. Step 5: Solve for x
    x = 26,504,452,527.39/215,212.61
  6. Step 6: Final answer
    x = 123,154.74

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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.