Home / 192,785.18-289,257.75-117,907.97

Finding the Fourth Proportional to 192,785.18, 289,257.75 and 117,907.97

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Solution

The fourth proportional to 192,785.18, 289,257.75 and 117,907.97 is: 176,910.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,785.18 : 289,257.75 = 117,907.97 : x
  2. Step 2: Convert to fraction form
    192,785.18/289,257.75 = 117,907.97/x
  3. Step 3: Cross multiply
    192,785.18x = 289,257.75 × 117,907.97
  4. Step 4: Simplify right side
    192,785.18x = 34,105,792,662.98
  5. Step 5: Solve for x
    x = 34,105,792,662.98/192,785.18
  6. Step 6: Final answer
    x = 176,910.87

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1.5x scale

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.