Home / 123,229.26-170,056.26-66,640.50

Finding the Fourth Proportional to 123,229.26, 170,056.26 and 66,640.50

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Solution

The fourth proportional to 123,229.26, 170,056.26 and 66,640.50 is: 91,963.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,229.26 : 170,056.26 = 66,640.50 : x
  2. Step 2: Convert to fraction form
    123,229.26/170,056.26 = 66,640.50/x
  3. Step 3: Cross multiply
    123,229.26x = 170,056.26 × 66,640.50
  4. Step 4: Simplify right side
    123,229.26x = 11,332,634,194.53
  5. Step 5: Solve for x
    x = 11,332,634,194.53/123,229.26
  6. Step 6: Final answer
    x = 91,963.83

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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.