Home / 121,687.11-167,928.80-67,974.39

Finding the Fourth Proportional to 121,687.11, 167,928.80 and 67,974.39

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Solution

The fourth proportional to 121,687.11, 167,928.80 and 67,974.39 is: 93,804.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,687.11 : 167,928.80 = 67,974.39 : x
  2. Step 2: Convert to fraction form
    121,687.11/167,928.80 = 67,974.39/x
  3. Step 3: Cross multiply
    121,687.11x = 167,928.80 × 67,974.39
  4. Step 4: Simplify right side
    121,687.11x = 11,414,857,403.56
  5. Step 5: Solve for x
    x = 11,414,857,403.56/121,687.11
  6. Step 6: Final answer
    x = 93,804.98

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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.