Home / 143,612.92-198,193.68-79,949.32

Finding the Fourth Proportional to 143,612.92, 198,193.68 and 79,949.32

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Solution

The fourth proportional to 143,612.92, 198,193.68 and 79,949.32 is: 110,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,612.92 : 198,193.68 = 79,949.32 : x
  2. Step 2: Convert to fraction form
    143,612.92/198,193.68 = 79,949.32/x
  3. Step 3: Cross multiply
    143,612.92x = 198,193.68 × 79,949.32
  4. Step 4: Simplify right side
    143,612.92x = 15,845,449,944.30
  5. Step 5: Solve for x
    x = 15,845,449,944.30/143,612.92
  6. Step 6: Final answer
    x = 110,334.43

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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.