Home / 121,112.73-167,134.35-67,396.82

Finding the Fourth Proportional to 121,112.73, 167,134.35 and 67,396.82

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Solution

The fourth proportional to 121,112.73, 167,134.35 and 67,396.82 is: 93,006.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,112.73 : 167,134.35 = 67,396.82 : x
  2. Step 2: Convert to fraction form
    121,112.73/167,134.35 = 67,396.82/x
  3. Step 3: Cross multiply
    121,112.73x = 167,134.35 × 67,396.82
  4. Step 4: Simplify right side
    121,112.73x = 11,264,324,120.60
  5. Step 5: Solve for x
    x = 11,264,324,120.60/121,112.73
  6. Step 6: Final answer
    x = 93,006.94

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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.