Home / 208,542.62-312,830.33-82,174.11

Finding the Fourth Proportional to 208,542.62, 312,830.33 and 82,174.11

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Solution

The fourth proportional to 208,542.62, 312,830.33 and 82,174.11 is: 123,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,542.62 : 312,830.33 = 82,174.11 : x
  2. Step 2: Convert to fraction form
    208,542.62/312,830.33 = 82,174.11/x
  3. Step 3: Cross multiply
    208,542.62x = 312,830.33 × 82,174.11
  4. Step 4: Simplify right side
    208,542.62x = 25,706,553,537.89
  5. Step 5: Solve for x
    x = 25,706,553,537.89/208,542.62
  6. Step 6: Final answer
    x = 123,267.63

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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.