Home / 139,449.05-192,441.18-75,786.85

Finding the Fourth Proportional to 139,449.05, 192,441.18 and 75,786.85

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Solution

The fourth proportional to 139,449.05, 192,441.18 and 75,786.85 is: 104,586.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,449.05 : 192,441.18 = 75,786.85 : x
  2. Step 2: Convert to fraction form
    139,449.05/192,441.18 = 75,786.85/x
  3. Step 3: Cross multiply
    139,449.05x = 192,441.18 × 75,786.85
  4. Step 4: Simplify right side
    139,449.05x = 14,584,510,842.48
  5. Step 5: Solve for x
    x = 14,584,510,842.48/139,449.05
  6. Step 6: Final answer
    x = 104,586.66

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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.