Home / 123,028.44-169,779.26-66,439.82

Finding the Fourth Proportional to 123,028.44, 169,779.26 and 66,439.82

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Solution

The fourth proportional to 123,028.44, 169,779.26 and 66,439.82 is: 91,686.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,028.44 : 169,779.26 = 66,439.82 : x
  2. Step 2: Convert to fraction form
    123,028.44/169,779.26 = 66,439.82/x
  3. Step 3: Cross multiply
    123,028.44x = 169,779.26 × 66,439.82
  4. Step 4: Simplify right side
    123,028.44x = 11,280,103,474.13
  5. Step 5: Solve for x
    x = 11,280,103,474.13/123,028.44
  6. Step 6: Final answer
    x = 91,686.96

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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.