Home / 123,927.11-171,020.75-67,338.48

Finding the Fourth Proportional to 123,927.11, 171,020.75 and 67,338.48

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Solution

The fourth proportional to 123,927.11, 171,020.75 and 67,338.48 is: 92,927.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,927.11 : 171,020.75 = 67,338.48 : x
  2. Step 2: Convert to fraction form
    123,927.11/171,020.75 = 67,338.48/x
  3. Step 3: Cross multiply
    123,927.11x = 171,020.75 × 67,338.48
  4. Step 4: Simplify right side
    123,927.11x = 11,516,277,016.77
  5. Step 5: Solve for x
    x = 11,516,277,016.77/123,927.11
  6. Step 6: Final answer
    x = 92,927.83

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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.