Home / 139,972.01-209,914.94-40,105.44

Finding the Fourth Proportional to 139,972.01, 209,914.94 and 40,105.44

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Solution

The fourth proportional to 139,972.01, 209,914.94 and 40,105.44 is: 60,145.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,972.01 : 209,914.94 = 40,105.44 : x
  2. Step 2: Convert to fraction form
    139,972.01/209,914.94 = 40,105.44/x
  3. Step 3: Cross multiply
    139,972.01x = 209,914.94 × 40,105.44
  4. Step 4: Simplify right side
    139,972.01x = 8,418,731,131.54
  5. Step 5: Solve for x
    x = 8,418,731,131.54/139,972.01
  6. Step 6: Final answer
    x = 60,145.82

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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.