Home / 198,723.28-298,164.57-72,372.33

Finding the Fourth Proportional to 198,723.28, 298,164.57 and 72,372.33

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Solution

The fourth proportional to 198,723.28, 298,164.57 and 72,372.33 is: 108,587.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,723.28 : 298,164.57 = 72,372.33 : x
  2. Step 2: Convert to fraction form
    198,723.28/298,164.57 = 72,372.33/x
  3. Step 3: Cross multiply
    198,723.28x = 298,164.57 × 72,372.33
  4. Step 4: Simplify right side
    198,723.28x = 21,578,864,654.35
  5. Step 5: Solve for x
    x = 21,578,864,654.35/198,723.28
  6. Step 6: Final answer
    x = 108,587.50

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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.