Home / 192,715.54-288,907.18-74,469.85

Finding the Fourth Proportional to 192,715.54, 288,907.18 and 74,469.85

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Solution

The fourth proportional to 192,715.54, 288,907.18 and 74,469.85 is: 111,640.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,715.54 : 288,907.18 = 74,469.85 : x
  2. Step 2: Convert to fraction form
    192,715.54/288,907.18 = 74,469.85/x
  3. Step 3: Cross multiply
    192,715.54x = 288,907.18 × 74,469.85
  4. Step 4: Simplify right side
    192,715.54x = 21,514,874,358.52
  5. Step 5: Solve for x
    x = 21,514,874,358.52/192,715.54
  6. Step 6: Final answer
    x = 111,640.58

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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.