Home / 120,424.35-166,183.42-66,709.20

Finding the Fourth Proportional to 120,424.35, 166,183.42 and 66,709.20

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Solution

The fourth proportional to 120,424.35, 166,183.42 and 66,709.20 is: 92,057.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,424.35 : 166,183.42 = 66,709.20 : x
  2. Step 2: Convert to fraction form
    120,424.35/166,183.42 = 66,709.20/x
  3. Step 3: Cross multiply
    120,424.35x = 166,183.42 × 66,709.20
  4. Step 4: Simplify right side
    120,424.35x = 11,085,962,170.55
  5. Step 5: Solve for x
    x = 11,085,962,170.55/120,424.35
  6. Step 6: Final answer
    x = 92,057.48

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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.