Home / 209,183.82-313,772.99-51,413.64

Finding the Fourth Proportional to 209,183.82, 313,772.99 and 51,413.64

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Solution

The fourth proportional to 209,183.82, 313,772.99 and 51,413.64 is: 77,119.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,183.82 : 313,772.99 = 51,413.64 : x
  2. Step 2: Convert to fraction form
    209,183.82/313,772.99 = 51,413.64/x
  3. Step 3: Cross multiply
    209,183.82x = 313,772.99 × 51,413.64
  4. Step 4: Simplify right side
    209,183.82x = 16,132,210,405.07
  5. Step 5: Solve for x
    x = 16,132,210,405.07/209,183.82
  6. Step 6: Final answer
    x = 77,119.78

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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.