Home / 123,540.31-170,481.05-66,950.47

Finding the Fourth Proportional to 123,540.31, 170,481.05 and 66,950.47

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Solution

The fourth proportional to 123,540.31, 170,481.05 and 66,950.47 is: 92,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,540.31 : 170,481.05 = 66,950.47 : x
  2. Step 2: Convert to fraction form
    123,540.31/170,481.05 = 66,950.47/x
  3. Step 3: Cross multiply
    123,540.31x = 170,481.05 × 66,950.47
  4. Step 4: Simplify right side
    123,540.31x = 11,413,785,571.19
  5. Step 5: Solve for x
    x = 11,413,785,571.19/123,540.31
  6. Step 6: Final answer
    x = 92,389.16

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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.