Home / 120,674.91-166,531.38-66,968.57

Finding the Fourth Proportional to 120,674.91, 166,531.38 and 66,968.57

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Solution

The fourth proportional to 120,674.91, 166,531.38 and 66,968.57 is: 92,416.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,674.91 : 166,531.38 = 66,968.57 : x
  2. Step 2: Convert to fraction form
    120,674.91/166,531.38 = 66,968.57/x
  3. Step 3: Cross multiply
    120,674.91x = 166,531.38 × 66,968.57
  4. Step 4: Simplify right side
    120,674.91x = 11,152,367,546.07
  5. Step 5: Solve for x
    x = 11,152,367,546.07/120,674.91
  6. Step 6: Final answer
    x = 92,416.62

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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.