Home / 120,600.58-166,438.76-66,902.90

Finding the Fourth Proportional to 120,600.58, 166,438.76 and 66,902.90

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Solution

The fourth proportional to 120,600.58, 166,438.76 and 66,902.90 is: 92,331.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,600.58 : 166,438.76 = 66,902.90 : x
  2. Step 2: Convert to fraction form
    120,600.58/166,438.76 = 66,902.90/x
  3. Step 3: Cross multiply
    120,600.58x = 166,438.76 × 66,902.90
  4. Step 4: Simplify right side
    120,600.58x = 11,135,235,716.40
  5. Step 5: Solve for x
    x = 11,135,235,716.40/120,600.58
  6. Step 6: Final answer
    x = 92,331.53

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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.