Home / 121,090.26-167,105.38-67,377.54

Finding the Fourth Proportional to 121,090.26, 167,105.38 and 67,377.54

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Solution

The fourth proportional to 121,090.26, 167,105.38 and 67,377.54 is: 92,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,090.26 : 167,105.38 = 67,377.54 : x
  2. Step 2: Convert to fraction form
    121,090.26/167,105.38 = 67,377.54/x
  3. Step 3: Cross multiply
    121,090.26x = 167,105.38 × 67,377.54
  4. Step 4: Simplify right side
    121,090.26x = 11,259,149,425.17
  5. Step 5: Solve for x
    x = 11,259,149,425.17/121,090.26
  6. Step 6: Final answer
    x = 92,981.46

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1.5x scale

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.