Home / 198,863.32-298,022.28-105,181.96

Finding the Fourth Proportional to 198,863.32, 298,022.28 and 105,181.96

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Solution

The fourth proportional to 198,863.32, 298,022.28 and 105,181.96 is: 157,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,863.32 : 298,022.28 = 105,181.96 : x
  2. Step 2: Convert to fraction form
    198,863.32/298,022.28 = 105,181.96/x
  3. Step 3: Cross multiply
    198,863.32x = 298,022.28 × 105,181.96
  4. Step 4: Simplify right side
    198,863.32x = 31,346,567,534.07
  5. Step 5: Solve for x
    x = 31,346,567,534.07/198,863.32
  6. Step 6: Final answer
    x = 157,628.70

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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.