Home / 215,299.08-322,950.24-82,143.54

Finding the Fourth Proportional to 215,299.08, 322,950.24 and 82,143.54

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Solution

The fourth proportional to 215,299.08, 322,950.24 and 82,143.54 is: 123,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,299.08 : 322,950.24 = 82,143.54 : x
  2. Step 2: Convert to fraction form
    215,299.08/322,950.24 = 82,143.54/x
  3. Step 3: Cross multiply
    215,299.08x = 322,950.24 × 82,143.54
  4. Step 4: Simplify right side
    215,299.08x = 26,528,275,957.45
  5. Step 5: Solve for x
    x = 26,528,275,957.45/215,299.08
  6. Step 6: Final answer
    x = 123,215.93

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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.