Home / 171,118.80-256,454.03-82,195.38

Finding the Fourth Proportional to 171,118.80, 256,454.03 and 82,195.38

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Solution

The fourth proportional to 171,118.80, 256,454.03 and 82,195.38 is: 123,185.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,118.80 : 256,454.03 = 82,195.38 : x
  2. Step 2: Convert to fraction form
    171,118.80/256,454.03 = 82,195.38/x
  3. Step 3: Cross multiply
    171,118.80x = 256,454.03 × 82,195.38
  4. Step 4: Simplify right side
    171,118.80x = 21,079,336,653.87
  5. Step 5: Solve for x
    x = 21,079,336,653.87/171,118.80
  6. Step 6: Final answer
    x = 123,185.39

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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.