Home / 120,497.94-166,287.18-66,786.44

Finding the Fourth Proportional to 120,497.94, 166,287.18 and 66,786.44

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Solution

The fourth proportional to 120,497.94, 166,287.18 and 66,786.44 is: 92,165.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,497.94 : 166,287.18 = 66,786.44 : x
  2. Step 2: Convert to fraction form
    120,497.94/166,287.18 = 66,786.44/x
  3. Step 3: Cross multiply
    120,497.94x = 166,287.18 × 66,786.44
  4. Step 4: Simplify right side
    120,497.94x = 11,105,727,938.40
  5. Step 5: Solve for x
    x = 11,105,727,938.40/120,497.94
  6. Step 6: Final answer
    x = 92,165.29

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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.