Home / 123,212.26-170,032.80-66,623.50

Finding the Fourth Proportional to 123,212.26, 170,032.80 and 66,623.50

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Solution

The fourth proportional to 123,212.26, 170,032.80 and 66,623.50 is: 91,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,212.26 : 170,032.80 = 66,623.50 : x
  2. Step 2: Convert to fraction form
    123,212.26/170,032.80 = 66,623.50/x
  3. Step 3: Cross multiply
    123,212.26x = 170,032.80 × 66,623.50
  4. Step 4: Simplify right side
    123,212.26x = 11,328,180,250.80
  5. Step 5: Solve for x
    x = 11,328,180,250.80/123,212.26
  6. Step 6: Final answer
    x = 91,940.37

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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.