Home / 143,996.45-198,713.38-79,466.18

Finding the Fourth Proportional to 143,996.45, 198,713.38 and 79,466.18

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Solution

The fourth proportional to 143,996.45, 198,713.38 and 79,466.18 is: 109,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,996.45 : 198,713.38 = 79,466.18 : x
  2. Step 2: Convert to fraction form
    143,996.45/198,713.38 = 79,466.18/x
  3. Step 3: Cross multiply
    143,996.45x = 198,713.38 × 79,466.18
  4. Step 4: Simplify right side
    143,996.45x = 15,790,993,223.49
  5. Step 5: Solve for x
    x = 15,790,993,223.49/143,996.45
  6. Step 6: Final answer
    x = 109,662.38

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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.