Home / 198,824.01-298,123.07-135,720.55

Finding the Fourth Proportional to 198,824.01, 298,123.07 and 135,720.55

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Solution

The fourth proportional to 198,824.01, 298,123.07 and 135,720.55 is: 203,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,824.01 : 298,123.07 = 135,720.55 : x
  2. Step 2: Convert to fraction form
    198,824.01/298,123.07 = 135,720.55/x
  3. Step 3: Cross multiply
    198,824.01x = 298,123.07 × 135,720.55
  4. Step 4: Simplify right side
    198,824.01x = 40,461,426,722.14
  5. Step 5: Solve for x
    x = 40,461,426,722.14/198,824.01
  6. Step 6: Final answer
    x = 203,503.73

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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.