Home / 198,664.75-274,157.40-109,240.75

Finding the Fourth Proportional to 198,664.75, 274,157.40 and 109,240.75

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Solution

The fourth proportional to 198,664.75, 274,157.40 and 109,240.75 is: 150,752.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,664.75 : 274,157.40 = 109,240.75 : x
  2. Step 2: Convert to fraction form
    198,664.75/274,157.40 = 109,240.75/x
  3. Step 3: Cross multiply
    198,664.75x = 274,157.40 × 109,240.75
  4. Step 4: Simplify right side
    198,664.75x = 29,949,159,994.05
  5. Step 5: Solve for x
    x = 29,949,159,994.05/198,664.75
  6. Step 6: Final answer
    x = 150,752.26

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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.