Home / 139,942.15-209,850.04-40,079.49

Finding the Fourth Proportional to 139,942.15, 209,850.04 and 40,079.49

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Solution

The fourth proportional to 139,942.15, 209,850.04 and 40,079.49 is: 60,101.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,942.15 : 209,850.04 = 40,079.49 : x
  2. Step 2: Convert to fraction form
    139,942.15/209,850.04 = 40,079.49/x
  3. Step 3: Cross multiply
    139,942.15x = 209,850.04 × 40,079.49
  4. Step 4: Simplify right side
    139,942.15x = 8,410,682,579.68
  5. Step 5: Solve for x
    x = 8,410,682,579.68/139,942.15
  6. Step 6: Final answer
    x = 60,101.14

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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.