Home / 165,835.20-248,704.20-77,067.30

Finding the Fourth Proportional to 165,835.20, 248,704.20 and 77,067.30

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Solution

The fourth proportional to 165,835.20, 248,704.20 and 77,067.30 is: 115,578.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,835.20 : 248,704.20 = 77,067.30 : x
  2. Step 2: Convert to fraction form
    165,835.20/248,704.20 = 77,067.30/x
  3. Step 3: Cross multiply
    165,835.20x = 248,704.20 × 77,067.30
  4. Step 4: Simplify right side
    165,835.20x = 19,166,961,192.66
  5. Step 5: Solve for x
    x = 19,166,961,192.66/165,835.20
  6. Step 6: Final answer
    x = 115,578.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.