Home / 215,840.65-323,576.37-82,816.38

Finding the Fourth Proportional to 215,840.65, 323,576.37 and 82,816.38

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Solution

The fourth proportional to 215,840.65, 323,576.37 and 82,816.38 is: 124,153.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,840.65 : 323,576.37 = 82,816.38 : x
  2. Step 2: Convert to fraction form
    215,840.65/323,576.37 = 82,816.38/x
  3. Step 3: Cross multiply
    215,840.65x = 323,576.37 × 82,816.38
  4. Step 4: Simplify right side
    215,840.65x = 26,797,423,616.94
  5. Step 5: Solve for x
    x = 26,797,423,616.94/215,840.65
  6. Step 6: Final answer
    x = 124,153.74

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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.