Home / 80,183.22-120,239.29-42,736.31

Finding the Fourth Proportional to 80,183.22, 120,239.29 and 42,736.31

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Solution

The fourth proportional to 80,183.22, 120,239.29 and 42,736.31 is: 64,085.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,183.22 : 120,239.29 = 42,736.31 : x
  2. Step 2: Convert to fraction form
    80,183.22/120,239.29 = 42,736.31/x
  3. Step 3: Cross multiply
    80,183.22x = 120,239.29 × 42,736.31
  4. Step 4: Simplify right side
    80,183.22x = 5,138,583,234.35
  5. Step 5: Solve for x
    x = 5,138,583,234.35/80,183.22
  6. Step 6: Final answer
    x = 64,085.52

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1.5x scale

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.