Home / 139,975.14-209,919.62-40,108.54

Finding the Fourth Proportional to 139,975.14, 209,919.62 and 40,108.54

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Solution

The fourth proportional to 139,975.14, 209,919.62 and 40,108.54 is: 60,150.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,975.14 : 209,919.62 = 40,108.54 : x
  2. Step 2: Convert to fraction form
    139,975.14/209,919.62 = 40,108.54/x
  3. Step 3: Cross multiply
    139,975.14x = 209,919.62 × 40,108.54
  4. Step 4: Simplify right side
    139,975.14x = 8,419,569,475.55
  5. Step 5: Solve for x
    x = 8,419,569,475.55/139,975.14
  6. Step 6: Final answer
    x = 60,150.46

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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.