Home / 123,936.96-171,034.56-67,349.28

Finding the Fourth Proportional to 123,936.96, 171,034.56 and 67,349.28

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Solution

The fourth proportional to 123,936.96, 171,034.56 and 67,349.28 is: 92,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,936.96 : 171,034.56 = 67,349.28 : x
  2. Step 2: Convert to fraction form
    123,936.96/171,034.56 = 67,349.28/x
  3. Step 3: Cross multiply
    123,936.96x = 171,034.56 × 67,349.28
  4. Step 4: Simplify right side
    123,936.96x = 11,519,054,471.12
  5. Step 5: Solve for x
    x = 11,519,054,471.12/123,936.96
  6. Step 6: Final answer
    x = 92,942.85

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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.