Home / 132,174.98-198,178.23-87,144.38

Finding the Fourth Proportional to 132,174.98, 198,178.23 and 87,144.38

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Solution

The fourth proportional to 132,174.98, 198,178.23 and 87,144.38 is: 130,661.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,174.98 : 198,178.23 = 87,144.38 : x
  2. Step 2: Convert to fraction form
    132,174.98/198,178.23 = 87,144.38/x
  3. Step 3: Cross multiply
    132,174.98x = 198,178.23 × 87,144.38
  4. Step 4: Simplify right side
    132,174.98x = 17,270,118,982.85
  5. Step 5: Solve for x
    x = 17,270,118,982.85/132,174.98
  6. Step 6: Final answer
    x = 130,661.03

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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.