Home / 170,128.28-255,183.78-51,797

Finding the Fourth Proportional to 170,128.28, 255,183.78 and 51,797

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Solution

The fourth proportional to 170,128.28, 255,183.78 and 51,797 is: 77,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,128.28 : 255,183.78 = 51,797 : x
  2. Step 2: Convert to fraction form
    170,128.28/255,183.78 = 51,797/x
  3. Step 3: Cross multiply
    170,128.28x = 255,183.78 × 51,797
  4. Step 4: Simplify right side
    170,128.28x = 13,217,754,252.66
  5. Step 5: Solve for x
    x = 13,217,754,252.66/170,128.28
  6. Step 6: Final answer
    x = 77,692.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.