Home / 120,450.31-166,214.46-66,732.12

Finding the Fourth Proportional to 120,450.31, 166,214.46 and 66,732.12

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Solution

The fourth proportional to 120,450.31, 166,214.46 and 66,732.12 is: 92,086.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,450.31 : 166,214.46 = 66,732.12 : x
  2. Step 2: Convert to fraction form
    120,450.31/166,214.46 = 66,732.12/x
  3. Step 3: Cross multiply
    120,450.31x = 166,214.46 × 66,732.12
  4. Step 4: Simplify right side
    120,450.31x = 11,091,843,540.70
  5. Step 5: Solve for x
    x = 11,091,843,540.70/120,450.31
  6. Step 6: Final answer
    x = 92,086.47

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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.