Home / 143,186.20-197,605.92-82,767.76

Finding the Fourth Proportional to 143,186.20, 197,605.92 and 82,767.76

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Solution

The fourth proportional to 143,186.20, 197,605.92 and 82,767.76 is: 114,224.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,186.20 : 197,605.92 = 82,767.76 : x
  2. Step 2: Convert to fraction form
    143,186.20/197,605.92 = 82,767.76/x
  3. Step 3: Cross multiply
    143,186.20x = 197,605.92 × 82,767.76
  4. Step 4: Simplify right side
    143,186.20x = 16,355,399,361.14
  5. Step 5: Solve for x
    x = 16,355,399,361.14/143,186.20
  6. Step 6: Final answer
    x = 114,224.69

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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.