Home / 143,822.88-198,480.24-80,174.16

Finding the Fourth Proportional to 143,822.88, 198,480.24 and 80,174.16

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Solution

The fourth proportional to 143,822.88, 198,480.24 and 80,174.16 is: 110,642.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,822.88 : 198,480.24 = 80,174.16 : x
  2. Step 2: Convert to fraction form
    143,822.88/198,480.24 = 80,174.16/x
  3. Step 3: Cross multiply
    143,822.88x = 198,480.24 × 80,174.16
  4. Step 4: Simplify right side
    143,822.88x = 15,912,986,518.60
  5. Step 5: Solve for x
    x = 15,912,986,518.60/143,822.88
  6. Step 6: Final answer
    x = 110,642.94

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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.