Home / 121,676.20-167,911.36-67,962

Finding the Fourth Proportional to 121,676.20, 167,911.36 and 67,962

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Solution

The fourth proportional to 121,676.20, 167,911.36 and 67,962 is: 93,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,676.20 : 167,911.36 = 67,962 : x
  2. Step 2: Convert to fraction form
    121,676.20/167,911.36 = 67,962/x
  3. Step 3: Cross multiply
    121,676.20x = 167,911.36 × 67,962
  4. Step 4: Simplify right side
    121,676.20x = 11,411,591,848.32
  5. Step 5: Solve for x
    x = 11,411,591,848.32/121,676.20
  6. Step 6: Final answer
    x = 93,786.56

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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.