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Finding the Fourth Proportional to 121,999.44, 168,357.57 and 68,284.44

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Solution

The fourth proportional to 121,999.44, 168,357.57 and 68,284.44 is: 94,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,999.44 : 168,357.57 = 68,284.44 : x
  2. Step 2: Convert to fraction form
    121,999.44/168,357.57 = 68,284.44/x
  3. Step 3: Cross multiply
    121,999.44x = 168,357.57 × 68,284.44
  4. Step 4: Simplify right side
    121,999.44x = 11,496,202,387.21
  5. Step 5: Solve for x
    x = 11,496,202,387.21/121,999.44
  6. Step 6: Final answer
    x = 94,231.60

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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.