Home / 208,183.32-312,286.14-66,039.39

Finding the Fourth Proportional to 208,183.32, 312,286.14 and 66,039.39

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Solution

The fourth proportional to 208,183.32, 312,286.14 and 66,039.39 is: 99,062.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,183.32 : 312,286.14 = 66,039.39 : x
  2. Step 2: Convert to fraction form
    208,183.32/312,286.14 = 66,039.39/x
  3. Step 3: Cross multiply
    208,183.32x = 312,286.14 × 66,039.39
  4. Step 4: Simplify right side
    208,183.32x = 20,623,185,860.86
  5. Step 5: Solve for x
    x = 20,623,185,860.86/208,183.32
  6. Step 6: Final answer
    x = 99,062.62

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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.