Home / 143,626.92-198,201.78-79,963.44

Finding the Fourth Proportional to 143,626.92, 198,201.78 and 79,963.44

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Solution

The fourth proportional to 143,626.92, 198,201.78 and 79,963.44 is: 110,347.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,626.92 : 198,201.78 = 79,963.44 : x
  2. Step 2: Convert to fraction form
    143,626.92/198,201.78 = 79,963.44/x
  3. Step 3: Cross multiply
    143,626.92x = 198,201.78 × 79,963.44
  4. Step 4: Simplify right side
    143,626.92x = 15,848,896,142.92
  5. Step 5: Solve for x
    x = 15,848,896,142.92/143,626.92
  6. Step 6: Final answer
    x = 110,347.67

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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.