Home / 120,290.46-165,982.53-68,608

Finding the Fourth Proportional to 120,290.46, 165,982.53 and 68,608

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Solution

The fourth proportional to 120,290.46, 165,982.53 and 68,608 is: 94,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,290.46 : 165,982.53 = 68,608 : x
  2. Step 2: Convert to fraction form
    120,290.46/165,982.53 = 68,608/x
  3. Step 3: Cross multiply
    120,290.46x = 165,982.53 × 68,608
  4. Step 4: Simplify right side
    120,290.46x = 11,387,729,418.24
  5. Step 5: Solve for x
    x = 11,387,729,418.24/120,290.46
  6. Step 6: Final answer
    x = 94,668.60

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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.