Home / 143,650.14-198,240.39-79,993.86

Finding the Fourth Proportional to 143,650.14, 198,240.39 and 79,993.86

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Solution

The fourth proportional to 143,650.14, 198,240.39 and 79,993.86 is: 110,393.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,650.14 : 198,240.39 = 79,993.86 : x
  2. Step 2: Convert to fraction form
    143,650.14/198,240.39 = 79,993.86/x
  3. Step 3: Cross multiply
    143,650.14x = 198,240.39 × 79,993.86
  4. Step 4: Simplify right side
    143,650.14x = 15,858,014,004.01
  5. Step 5: Solve for x
    x = 15,858,014,004.01/143,650.14
  6. Step 6: Final answer
    x = 110,393.31

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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.