Home / 198,638.26-274,120.78-109,214.26

Finding the Fourth Proportional to 198,638.26, 274,120.78 and 109,214.26

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Solution

The fourth proportional to 198,638.26, 274,120.78 and 109,214.26 is: 150,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,638.26 : 274,120.78 = 109,214.26 : x
  2. Step 2: Convert to fraction form
    198,638.26/274,120.78 = 109,214.26/x
  3. Step 3: Cross multiply
    198,638.26x = 274,120.78 × 109,214.26
  4. Step 4: Simplify right side
    198,638.26x = 29,937,898,138.32
  5. Step 5: Solve for x
    x = 29,937,898,138.32/198,638.26
  6. Step 6: Final answer
    x = 150,715.67

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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.