Home / 143,832.24-198,489.41-80,174.07

Finding the Fourth Proportional to 143,832.24, 198,489.41 and 80,174.07

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Solution

The fourth proportional to 143,832.24, 198,489.41 and 80,174.07 is: 110,640.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,832.24 : 198,489.41 = 80,174.07 : x
  2. Step 2: Convert to fraction form
    143,832.24/198,489.41 = 80,174.07/x
  3. Step 3: Cross multiply
    143,832.24x = 198,489.41 × 80,174.07
  4. Step 4: Simplify right side
    143,832.24x = 15,913,703,851.60
  5. Step 5: Solve for x
    x = 15,913,703,851.60/143,832.24
  6. Step 6: Final answer
    x = 110,640.73

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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.