Home / 143,729.30-198,352.41-80,067.08

Finding the Fourth Proportional to 143,729.30, 198,352.41 and 80,067.08

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Solution

The fourth proportional to 143,729.30, 198,352.41 and 80,067.08 is: 110,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,729.30 : 198,352.41 = 80,067.08 : x
  2. Step 2: Convert to fraction form
    143,729.30/198,352.41 = 80,067.08/x
  3. Step 3: Cross multiply
    143,729.30x = 198,352.41 × 80,067.08
  4. Step 4: Simplify right side
    143,729.30x = 15,881,498,279.66
  5. Step 5: Solve for x
    x = 15,881,498,279.66/143,729.30
  6. Step 6: Final answer
    x = 110,495.90

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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.