Home / 198,704.18-274,072.77-130,699.41

Finding the Fourth Proportional to 198,704.18, 274,072.77 and 130,699.41

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Solution

The fourth proportional to 198,704.18, 274,072.77 and 130,699.41 is: 180,273.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,704.18 : 274,072.77 = 130,699.41 : x
  2. Step 2: Convert to fraction form
    198,704.18/274,072.77 = 130,699.41/x
  3. Step 3: Cross multiply
    198,704.18x = 274,072.77 × 130,699.41
  4. Step 4: Simplify right side
    198,704.18x = 35,821,148,682.57
  5. Step 5: Solve for x
    x = 35,821,148,682.57/198,704.18
  6. Step 6: Final answer
    x = 180,273.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.