Home / 120,475.47-166,257.12-66,761.38

Finding the Fourth Proportional to 120,475.47, 166,257.12 and 66,761.38

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Solution

The fourth proportional to 120,475.47, 166,257.12 and 66,761.38 is: 92,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,475.47 : 166,257.12 = 66,761.38 : x
  2. Step 2: Convert to fraction form
    120,475.47/166,257.12 = 66,761.38/x
  3. Step 3: Cross multiply
    120,475.47x = 166,257.12 × 66,761.38
  4. Step 4: Simplify right side
    120,475.47x = 11,099,554,766.03
  5. Step 5: Solve for x
    x = 11,099,554,766.03/120,475.47
  6. Step 6: Final answer
    x = 92,131.24

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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.