Home / 198,741.32-298,039.84-108,850.80

Finding the Fourth Proportional to 198,741.32, 298,039.84 and 108,850.80

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Solution

The fourth proportional to 198,741.32, 298,039.84 and 108,850.80 is: 163,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,741.32 : 298,039.84 = 108,850.80 : x
  2. Step 2: Convert to fraction form
    198,741.32/298,039.84 = 108,850.80/x
  3. Step 3: Cross multiply
    198,741.32x = 298,039.84 × 108,850.80
  4. Step 4: Simplify right side
    198,741.32x = 32,441,875,015.87
  5. Step 5: Solve for x
    x = 32,441,875,015.87/198,741.32
  6. Step 6: Final answer
    x = 163,236.69

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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.