Home / 203,414.82-305,142.73-53,665.46

Finding the Fourth Proportional to 203,414.82, 305,142.73 and 53,665.46

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Solution

The fourth proportional to 203,414.82, 305,142.73 and 53,665.46 is: 80,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,414.82 : 305,142.73 = 53,665.46 : x
  2. Step 2: Convert to fraction form
    203,414.82/305,142.73 = 53,665.46/x
  3. Step 3: Cross multiply
    203,414.82x = 305,142.73 × 53,665.46
  4. Step 4: Simplify right side
    203,414.82x = 16,375,624,971.11
  5. Step 5: Solve for x
    x = 16,375,624,971.11/203,414.82
  6. Step 6: Final answer
    x = 80,503.60

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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.