Home / 165,682.53-248,149.92-76,749.21

Finding the Fourth Proportional to 165,682.53, 248,149.92 and 76,749.21

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Solution

The fourth proportional to 165,682.53, 248,149.92 and 76,749.21 is: 114,950.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,682.53 : 248,149.92 = 76,749.21 : x
  2. Step 2: Convert to fraction form
    165,682.53/248,149.92 = 76,749.21/x
  3. Step 3: Cross multiply
    165,682.53x = 248,149.92 × 76,749.21
  4. Step 4: Simplify right side
    165,682.53x = 19,045,310,321.56
  5. Step 5: Solve for x
    x = 19,045,310,321.56/165,682.53
  6. Step 6: Final answer
    x = 114,950.62

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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.