Home / 143,186.92-197,586.40-82,761.48

Finding the Fourth Proportional to 143,186.92, 197,586.40 and 82,761.48

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Solution

The fourth proportional to 143,186.92, 197,586.40 and 82,761.48 is: 114,204.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,186.92 : 197,586.40 = 82,761.48 : x
  2. Step 2: Convert to fraction form
    143,186.92/197,586.40 = 82,761.48/x
  3. Step 3: Cross multiply
    143,186.92x = 197,586.40 × 82,761.48
  4. Step 4: Simplify right side
    143,186.92x = 16,352,542,891.87
  5. Step 5: Solve for x
    x = 16,352,542,891.87/143,186.92
  6. Step 6: Final answer
    x = 114,204.17

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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.