Home / 198,647.20-274,071.12-113,748.64

Finding the Fourth Proportional to 198,647.20, 274,071.12 and 113,748.64

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Solution

The fourth proportional to 198,647.20, 274,071.12 and 113,748.64 is: 156,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,647.20 : 274,071.12 = 113,748.64 : x
  2. Step 2: Convert to fraction form
    198,647.20/274,071.12 = 113,748.64/x
  3. Step 3: Cross multiply
    198,647.20x = 274,071.12 × 113,748.64
  4. Step 4: Simplify right side
    198,647.20x = 31,175,217,163.28
  5. Step 5: Solve for x
    x = 31,175,217,163.28/198,647.20
  6. Step 6: Final answer
    x = 156,937.61

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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.