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Finding the Fourth Proportional to 120,452.52, 166,225.80 and 66,738.39

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Solution

The fourth proportional to 120,452.52, 166,225.80 and 66,738.39 is: 92,099.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,452.52 : 166,225.80 = 66,738.39 : x
  2. Step 2: Convert to fraction form
    120,452.52/166,225.80 = 66,738.39/x
  3. Step 3: Cross multiply
    120,452.52x = 166,225.80 × 66,738.39
  4. Step 4: Simplify right side
    120,452.52x = 11,093,642,268.46
  5. Step 5: Solve for x
    x = 11,093,642,268.46/120,452.52
  6. Step 6: Final answer
    x = 92,099.71

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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.