Home / 139,311.06-192,249.96-75,648.84

Finding the Fourth Proportional to 139,311.06, 192,249.96 and 75,648.84

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Solution

The fourth proportional to 139,311.06, 192,249.96 and 75,648.84 is: 104,395.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,311.06 : 192,249.96 = 75,648.84 : x
  2. Step 2: Convert to fraction form
    139,311.06/192,249.96 = 75,648.84/x
  3. Step 3: Cross multiply
    139,311.06x = 192,249.96 × 75,648.84
  4. Step 4: Simplify right side
    139,311.06x = 14,543,486,464.05
  5. Step 5: Solve for x
    x = 14,543,486,464.05/139,311.06
  6. Step 6: Final answer
    x = 104,395.78

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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.