Home / 120,620.42-166,456.98-66,906.35

Finding the Fourth Proportional to 120,620.42, 166,456.98 and 66,906.35

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Solution

The fourth proportional to 120,620.42, 166,456.98 and 66,906.35 is: 92,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,620.42 : 166,456.98 = 66,906.35 : x
  2. Step 2: Convert to fraction form
    120,620.42/166,456.98 = 66,906.35/x
  3. Step 3: Cross multiply
    120,620.42x = 166,456.98 × 66,906.35
  4. Step 4: Simplify right side
    120,620.42x = 11,137,028,131.54
  5. Step 5: Solve for x
    x = 11,137,028,131.54/120,620.42
  6. Step 6: Final answer
    x = 92,331.20

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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.