Home / 123,965.23-171,072.26-67,376.47

Finding the Fourth Proportional to 123,965.23, 171,072.26 and 67,376.47

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Solution

The fourth proportional to 123,965.23, 171,072.26 and 67,376.47 is: 92,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,965.23 : 171,072.26 = 67,376.47 : x
  2. Step 2: Convert to fraction form
    123,965.23/171,072.26 = 67,376.47/x
  3. Step 3: Cross multiply
    123,965.23x = 171,072.26 × 67,376.47
  4. Step 4: Simplify right side
    123,965.23x = 11,526,244,993.72
  5. Step 5: Solve for x
    x = 11,526,244,993.72/123,965.23
  6. Step 6: Final answer
    x = 92,979.66

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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.