Home / 145,786.12-201,183.97-82,144.42

Finding the Fourth Proportional to 145,786.12, 201,183.97 and 82,144.42

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Solution

The fourth proportional to 145,786.12, 201,183.97 and 82,144.42 is: 113,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,786.12 : 201,183.97 = 82,144.42 : x
  2. Step 2: Convert to fraction form
    145,786.12/201,183.97 = 82,144.42/x
  3. Step 3: Cross multiply
    145,786.12x = 201,183.97 × 82,144.42
  4. Step 4: Simplify right side
    145,786.12x = 16,526,140,528.95
  5. Step 5: Solve for x
    x = 16,526,140,528.95/145,786.12
  6. Step 6: Final answer
    x = 113,358.81

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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.