Home / 165,675.20-248,512.80-81,448.37

Finding the Fourth Proportional to 165,675.20, 248,512.80 and 81,448.37

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Solution

The fourth proportional to 165,675.20, 248,512.80 and 81,448.37 is: 122,172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,675.20 : 248,512.80 = 81,448.37 : x
  2. Step 2: Convert to fraction form
    165,675.20/248,512.80 = 81,448.37/x
  3. Step 3: Cross multiply
    165,675.20x = 248,512.80 × 81,448.37
  4. Step 4: Simplify right side
    165,675.20x = 20,240,962,484.14
  5. Step 5: Solve for x
    x = 20,240,962,484.14/165,675.20
  6. Step 6: Final answer
    x = 122,172.56

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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.