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Finding the Fourth Proportional to 121,249.80, 167,328.72 and 66,799.08

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Solution

The fourth proportional to 121,249.80, 167,328.72 and 66,799.08 is: 92,184.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,249.80 : 167,328.72 = 66,799.08 : x
  2. Step 2: Convert to fraction form
    121,249.80/167,328.72 = 66,799.08/x
  3. Step 3: Cross multiply
    121,249.80x = 167,328.72 × 66,799.08
  4. Step 4: Simplify right side
    121,249.80x = 11,177,404,553.58
  5. Step 5: Solve for x
    x = 11,177,404,553.58/121,249.80
  6. Step 6: Final answer
    x = 92,184.93

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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.