Home / 217,108.98-325,694.85-82,136.43

Finding the Fourth Proportional to 217,108.98, 325,694.85 and 82,136.43

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Solution

The fourth proportional to 217,108.98, 325,694.85 and 82,136.43 is: 123,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,108.98 : 325,694.85 = 82,136.43 : x
  2. Step 2: Convert to fraction form
    217,108.98/325,694.85 = 82,136.43/x
  3. Step 3: Cross multiply
    217,108.98x = 325,694.85 × 82,136.43
  4. Step 4: Simplify right side
    217,108.98x = 26,751,412,248.39
  5. Step 5: Solve for x
    x = 26,751,412,248.39/217,108.98
  6. Step 6: Final answer
    x = 123,216.52

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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.