Home / 123,180.75-169,989.84-66,592.53

Finding the Fourth Proportional to 123,180.75, 169,989.84 and 66,592.53

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Solution

The fourth proportional to 123,180.75, 169,989.84 and 66,592.53 is: 91,897.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,180.75 : 169,989.84 = 66,592.53 : x
  2. Step 2: Convert to fraction form
    123,180.75/169,989.84 = 66,592.53/x
  3. Step 3: Cross multiply
    123,180.75x = 169,989.84 × 66,592.53
  4. Step 4: Simplify right side
    123,180.75x = 11,320,053,519.90
  5. Step 5: Solve for x
    x = 11,320,053,519.90/123,180.75
  6. Step 6: Final answer
    x = 91,897.91

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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.