Home / 121,749.03-168,010.43-68,034.49

Finding the Fourth Proportional to 121,749.03, 168,010.43 and 68,034.49

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Solution

The fourth proportional to 121,749.03, 168,010.43 and 68,034.49 is: 93,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,749.03 : 168,010.43 = 68,034.49 : x
  2. Step 2: Convert to fraction form
    121,749.03/168,010.43 = 68,034.49/x
  3. Step 3: Cross multiply
    121,749.03x = 168,010.43 × 68,034.49
  4. Step 4: Simplify right side
    121,749.03x = 11,430,503,919.73
  5. Step 5: Solve for x
    x = 11,430,503,919.73/121,749.03
  6. Step 6: Final answer
    x = 93,885.79

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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.