Home / 198,958.08-298,048.32-105,335.04

Finding the Fourth Proportional to 198,958.08, 298,048.32 and 105,335.04

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Solution

The fourth proportional to 198,958.08, 298,048.32 and 105,335.04 is: 157,796.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,958.08 : 298,048.32 = 105,335.04 : x
  2. Step 2: Convert to fraction form
    198,958.08/298,048.32 = 105,335.04/x
  3. Step 3: Cross multiply
    198,958.08x = 298,048.32 × 105,335.04
  4. Step 4: Simplify right side
    198,958.08x = 31,394,931,709.13
  5. Step 5: Solve for x
    x = 31,394,931,709.13/198,958.08
  6. Step 6: Final answer
    x = 157,796.72

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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.