Home / 123,175.31-169,982.18-66,586.68

Finding the Fourth Proportional to 123,175.31, 169,982.18 and 66,586.68

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Solution

The fourth proportional to 123,175.31, 169,982.18 and 66,586.68 is: 91,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,175.31 : 169,982.18 = 66,586.68 : x
  2. Step 2: Convert to fraction form
    123,175.31/169,982.18 = 66,586.68/x
  3. Step 3: Cross multiply
    123,175.31x = 169,982.18 × 66,586.68
  4. Step 4: Simplify right side
    123,175.31x = 11,318,548,692.43
  5. Step 5: Solve for x
    x = 11,318,548,692.43/123,175.31
  6. Step 6: Final answer
    x = 91,889.76

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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.