Home / 198,636.25-274,118.03-109,212.25

Finding the Fourth Proportional to 198,636.25, 274,118.03 and 109,212.25

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Solution

The fourth proportional to 198,636.25, 274,118.03 and 109,212.25 is: 150,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,636.25 : 274,118.03 = 109,212.25 : x
  2. Step 2: Convert to fraction form
    198,636.25/274,118.03 = 109,212.25/x
  3. Step 3: Cross multiply
    198,636.25x = 274,118.03 × 109,212.25
  4. Step 4: Simplify right side
    198,636.25x = 29,937,046,821.87
  5. Step 5: Solve for x
    x = 29,937,046,821.87/198,636.25
  6. Step 6: Final answer
    x = 150,712.91

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1.5x scale

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.