Home / 120,475.69-166,257.43-66,761.60

Finding the Fourth Proportional to 120,475.69, 166,257.43 and 66,761.60

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Solution

The fourth proportional to 120,475.69, 166,257.43 and 66,761.60 is: 92,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,475.69 : 166,257.43 = 66,761.60 : x
  2. Step 2: Convert to fraction form
    120,475.69/166,257.43 = 66,761.60/x
  3. Step 3: Cross multiply
    120,475.69x = 166,257.43 × 66,761.60
  4. Step 4: Simplify right side
    120,475.69x = 11,099,611,704.88
  5. Step 5: Solve for x
    x = 11,099,611,704.88/120,475.69
  6. Step 6: Final answer
    x = 92,131.55

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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.