Home / 198,836.08-298,257.36-105,148.24

Finding the Fourth Proportional to 198,836.08, 298,257.36 and 105,148.24

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Solution

The fourth proportional to 198,836.08, 298,257.36 and 105,148.24 is: 157,724.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,836.08 : 298,257.36 = 105,148.24 : x
  2. Step 2: Convert to fraction form
    198,836.08/298,257.36 = 105,148.24/x
  3. Step 3: Cross multiply
    198,836.08x = 298,257.36 × 105,148.24
  4. Step 4: Simplify right side
    198,836.08x = 31,361,236,471.05
  5. Step 5: Solve for x
    x = 31,361,236,471.05/198,836.08
  6. Step 6: Final answer
    x = 157,724.07

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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.