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Finding the Fourth Proportional to 80,169.24, 120,235.64 and 30,254.64

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Solution

The fourth proportional to 80,169.24, 120,235.64 and 30,254.64 is: 45,375.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,169.24 : 120,235.64 = 30,254.64 : x
  2. Step 2: Convert to fraction form
    80,169.24/120,235.64 = 30,254.64/x
  3. Step 3: Cross multiply
    80,169.24x = 120,235.64 × 30,254.64
  4. Step 4: Simplify right side
    80,169.24x = 3,637,686,003.37
  5. Step 5: Solve for x
    x = 3,637,686,003.37/80,169.24
  6. Step 6: Final answer
    x = 45,375.08

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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.