Home / 139,622.04-192,645.66-79,179.48

Finding the Fourth Proportional to 139,622.04, 192,645.66 and 79,179.48

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Solution

The fourth proportional to 139,622.04, 192,645.66 and 79,179.48 is: 109,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,622.04 : 192,645.66 = 79,179.48 : x
  2. Step 2: Convert to fraction form
    139,622.04/192,645.66 = 79,179.48/x
  3. Step 3: Cross multiply
    139,622.04x = 192,645.66 × 79,179.48
  4. Step 4: Simplify right side
    139,622.04x = 15,253,583,183.06
  5. Step 5: Solve for x
    x = 15,253,583,183.06/139,622.04
  6. Step 6: Final answer
    x = 109,249.11

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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.