Home / 143,107.75-197,497.92-82,680.94

Finding the Fourth Proportional to 143,107.75, 197,497.92 and 82,680.94

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Solution

The fourth proportional to 143,107.75, 197,497.92 and 82,680.94 is: 114,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,107.75 : 197,497.92 = 82,680.94 : x
  2. Step 2: Convert to fraction form
    143,107.75/197,497.92 = 82,680.94/x
  3. Step 3: Cross multiply
    143,107.75x = 197,497.92 × 82,680.94
  4. Step 4: Simplify right side
    143,107.75x = 16,329,313,673.64
  5. Step 5: Solve for x
    x = 16,329,313,673.64/143,107.75
  6. Step 6: Final answer
    x = 114,105.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.