Home / 215,743.08-323,661.39-82,623.36

Finding the Fourth Proportional to 215,743.08, 323,661.39 and 82,623.36

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Solution

The fourth proportional to 215,743.08, 323,661.39 and 82,623.36 is: 123,952.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,743.08 : 323,661.39 = 82,623.36 : x
  2. Step 2: Convert to fraction form
    215,743.08/323,661.39 = 82,623.36/x
  3. Step 3: Cross multiply
    215,743.08x = 323,661.39 × 82,623.36
  4. Step 4: Simplify right side
    215,743.08x = 26,741,991,544.07
  5. Step 5: Solve for x
    x = 26,741,991,544.07/215,743.08
  6. Step 6: Final answer
    x = 123,952.95

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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.