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Finding the Fourth Proportional to 121,037.20, 167,029.80 and 67,322

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Solution

The fourth proportional to 121,037.20, 167,029.80 and 67,322 is: 92,903.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,037.20 : 167,029.80 = 67,322 : x
  2. Step 2: Convert to fraction form
    121,037.20/167,029.80 = 67,322/x
  3. Step 3: Cross multiply
    121,037.20x = 167,029.80 × 67,322
  4. Step 4: Simplify right side
    121,037.20x = 11,244,780,195.60
  5. Step 5: Solve for x
    x = 11,244,780,195.60/121,037.20
  6. Step 6: Final answer
    x = 92,903.51

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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.