Home / 215,128.53-322,680.47-82,022.24

Finding the Fourth Proportional to 215,128.53, 322,680.47 and 82,022.24

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Solution

The fourth proportional to 215,128.53, 322,680.47 and 82,022.24 is: 123,028.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,128.53 : 322,680.47 = 82,022.24 : x
  2. Step 2: Convert to fraction form
    215,128.53/322,680.47 = 82,022.24/x
  3. Step 3: Cross multiply
    215,128.53x = 322,680.47 × 82,022.24
  4. Step 4: Simplify right side
    215,128.53x = 26,466,972,930.14
  5. Step 5: Solve for x
    x = 26,466,972,930.14/215,128.53
  6. Step 6: Final answer
    x = 123,028.65

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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.