Home / 139,450.28-192,435.97-75,786.71

Finding the Fourth Proportional to 139,450.28, 192,435.97 and 75,786.71

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Solution

The fourth proportional to 139,450.28, 192,435.97 and 75,786.71 is: 104,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,450.28 : 192,435.97 = 75,786.71 : x
  2. Step 2: Convert to fraction form
    139,450.28/192,435.97 = 75,786.71/x
  3. Step 3: Cross multiply
    139,450.28x = 192,435.97 × 75,786.71
  4. Step 4: Simplify right side
    139,450.28x = 14,584,088,673.03
  5. Step 5: Solve for x
    x = 14,584,088,673.03/139,450.28
  6. Step 6: Final answer
    x = 104,582.71

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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.