Home / 120,691.22-166,551.36-66,975.80

Finding the Fourth Proportional to 120,691.22, 166,551.36 and 66,975.80

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Solution

The fourth proportional to 120,691.22, 166,551.36 and 66,975.80 is: 92,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,691.22 : 166,551.36 = 66,975.80 : x
  2. Step 2: Convert to fraction form
    120,691.22/166,551.36 = 66,975.80/x
  3. Step 3: Cross multiply
    120,691.22x = 166,551.36 × 66,975.80
  4. Step 4: Simplify right side
    120,691.22x = 11,154,910,577.09
  5. Step 5: Solve for x
    x = 11,154,910,577.09/120,691.22
  6. Step 6: Final answer
    x = 92,425.20

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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.