Home / 143,729.44-198,352.76-80,067.28

Finding the Fourth Proportional to 143,729.44, 198,352.76 and 80,067.28

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Solution

The fourth proportional to 143,729.44, 198,352.76 and 80,067.28 is: 110,496.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,729.44 : 198,352.76 = 80,067.28 : x
  2. Step 2: Convert to fraction form
    143,729.44/198,352.76 = 80,067.28/x
  3. Step 3: Cross multiply
    143,729.44x = 198,352.76 × 80,067.28
  4. Step 4: Simplify right side
    143,729.44x = 15,881,565,973.69
  5. Step 5: Solve for x
    x = 15,881,565,973.69/143,729.44
  6. Step 6: Final answer
    x = 110,496.26

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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.