Home / 165,580.20-248,175.90-76,645.85

Finding the Fourth Proportional to 165,580.20, 248,175.90 and 76,645.85

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Solution

The fourth proportional to 165,580.20, 248,175.90 and 76,645.85 is: 114,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,580.20 : 248,175.90 = 76,645.85 : x
  2. Step 2: Convert to fraction form
    165,580.20/248,175.90 = 76,645.85/x
  3. Step 3: Cross multiply
    165,580.20x = 248,175.90 × 76,645.85
  4. Step 4: Simplify right side
    165,580.20x = 19,021,651,564.14
  5. Step 5: Solve for x
    x = 19,021,651,564.14/165,580.20
  6. Step 6: Final answer
    x = 114,878.78

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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.