Home / 198,981.90-298,472.85-135,996.30

Finding the Fourth Proportional to 198,981.90, 298,472.85 and 135,996.30

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Solution

The fourth proportional to 198,981.90, 298,472.85 and 135,996.30 is: 203,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,981.90 : 298,472.85 = 135,996.30 : x
  2. Step 2: Convert to fraction form
    198,981.90/298,472.85 = 135,996.30/x
  3. Step 3: Cross multiply
    198,981.90x = 298,472.85 × 135,996.30
  4. Step 4: Simplify right side
    198,981.90x = 40,591,203,250.46
  5. Step 5: Solve for x
    x = 40,591,203,250.46/198,981.90
  6. Step 6: Final answer
    x = 203,994.45

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1.5x scale

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.