Home / 143,189.23-197,589.56-82,763.78

Finding the Fourth Proportional to 143,189.23, 197,589.56 and 82,763.78

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Solution

The fourth proportional to 143,189.23, 197,589.56 and 82,763.78 is: 114,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,189.23 : 197,589.56 = 82,763.78 : x
  2. Step 2: Convert to fraction form
    143,189.23/197,589.56 = 82,763.78/x
  3. Step 3: Cross multiply
    143,189.23x = 197,589.56 × 82,763.78
  4. Step 4: Simplify right side
    143,189.23x = 16,353,258,874.14
  5. Step 5: Solve for x
    x = 16,353,258,874.14/143,189.23
  6. Step 6: Final answer
    x = 114,207.33

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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.