Home / 80,183.08-120,265.37-21,023.45

Finding the Fourth Proportional to 80,183.08, 120,265.37 and 21,023.45

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Solution

The fourth proportional to 80,183.08, 120,265.37 and 21,023.45 is: 31,532.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,183.08 : 120,265.37 = 21,023.45 : x
  2. Step 2: Convert to fraction form
    80,183.08/120,265.37 = 21,023.45/x
  3. Step 3: Cross multiply
    80,183.08x = 120,265.37 × 21,023.45
  4. Step 4: Simplify right side
    80,183.08x = 2,528,392,992.93
  5. Step 5: Solve for x
    x = 2,528,392,992.93/80,183.08
  6. Step 6: Final answer
    x = 31,532.75

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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.