Home / 132,072.70-198,121.20-53,170.60

Finding the Fourth Proportional to 132,072.70, 198,121.20 and 53,170.60

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Solution

The fourth proportional to 132,072.70, 198,121.20 and 53,170.60 is: 79,760.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,072.70 : 198,121.20 = 53,170.60 : x
  2. Step 2: Convert to fraction form
    132,072.70/198,121.20 = 53,170.60/x
  3. Step 3: Cross multiply
    132,072.70x = 198,121.20 × 53,170.60
  4. Step 4: Simplify right side
    132,072.70x = 10,534,223,076.72
  5. Step 5: Solve for x
    x = 10,534,223,076.72/132,072.70
  6. Step 6: Final answer
    x = 79,760.79

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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.