Home / 143,183.48-197,618.94-82,745.78

Finding the Fourth Proportional to 143,183.48, 197,618.94 and 82,745.78

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Solution

The fourth proportional to 143,183.48, 197,618.94 and 82,745.78 is: 114,204.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,183.48 : 197,618.94 = 82,745.78 : x
  2. Step 2: Convert to fraction form
    143,183.48/197,618.94 = 82,745.78/x
  3. Step 3: Cross multiply
    143,183.48x = 197,618.94 × 82,745.78
  4. Step 4: Simplify right side
    143,183.48x = 16,352,133,333.07
  5. Step 5: Solve for x
    x = 16,352,133,333.07/143,183.48
  6. Step 6: Final answer
    x = 114,204.05

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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.