Home / 143,865.30-198,534.24-80,201.70

Finding the Fourth Proportional to 143,865.30, 198,534.24 and 80,201.70

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Solution

The fourth proportional to 143,865.30, 198,534.24 and 80,201.70 is: 110,678.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,865.30 : 198,534.24 = 80,201.70 : x
  2. Step 2: Convert to fraction form
    143,865.30/198,534.24 = 80,201.70/x
  3. Step 3: Cross multiply
    143,865.30x = 198,534.24 × 80,201.70
  4. Step 4: Simplify right side
    143,865.30x = 15,922,783,556.21
  5. Step 5: Solve for x
    x = 15,922,783,556.21/143,865.30
  6. Step 6: Final answer
    x = 110,678.42

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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.