Home / 198,769.08-298,040.31-135,665.59

Finding the Fourth Proportional to 198,769.08, 298,040.31 and 135,665.59

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Solution

The fourth proportional to 198,769.08, 298,040.31 and 135,665.59 is: 203,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,769.08 : 298,040.31 = 135,665.59 : x
  2. Step 2: Convert to fraction form
    198,769.08/298,040.31 = 135,665.59/x
  3. Step 3: Cross multiply
    198,769.08x = 298,040.31 × 135,665.59
  4. Step 4: Simplify right side
    198,769.08x = 40,433,814,499.93
  5. Step 5: Solve for x
    x = 40,433,814,499.93/198,769.08
  6. Step 6: Final answer
    x = 203,421.05

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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.