Home / 139,919.18-209,816.84-40,056.62

Finding the Fourth Proportional to 139,919.18, 209,816.84 and 40,056.62

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Solution

The fourth proportional to 139,919.18, 209,816.84 and 40,056.62 is: 60,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,919.18 : 209,816.84 = 40,056.62 : x
  2. Step 2: Convert to fraction form
    139,919.18/209,816.84 = 40,056.62/x
  3. Step 3: Cross multiply
    139,919.18x = 209,816.84 × 40,056.62
  4. Step 4: Simplify right side
    139,919.18x = 8,404,552,480.54
  5. Step 5: Solve for x
    x = 8,404,552,480.54/139,919.18
  6. Step 6: Final answer
    x = 60,067.20

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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.