Home / 121,091.47-167,091.18-67,372.67

Finding the Fourth Proportional to 121,091.47, 167,091.18 and 67,372.67

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Solution

The fourth proportional to 121,091.47, 167,091.18 and 67,372.67 is: 92,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,091.47 : 167,091.18 = 67,372.67 : x
  2. Step 2: Convert to fraction form
    121,091.47/167,091.18 = 67,372.67/x
  3. Step 3: Cross multiply
    121,091.47x = 167,091.18 × 67,372.67
  4. Step 4: Simplify right side
    121,091.47x = 11,257,378,930.05
  5. Step 5: Solve for x
    x = 11,257,378,930.05/121,091.47
  6. Step 6: Final answer
    x = 92,965.91

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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.