Home / 123,379.76-170,264.82-66,791.13

Finding the Fourth Proportional to 123,379.76, 170,264.82 and 66,791.13

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Solution

The fourth proportional to 123,379.76, 170,264.82 and 66,791.13 is: 92,172.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,379.76 : 170,264.82 = 66,791.13 : x
  2. Step 2: Convert to fraction form
    123,379.76/170,264.82 = 66,791.13/x
  3. Step 3: Cross multiply
    123,379.76x = 170,264.82 × 66,791.13
  4. Step 4: Simplify right side
    123,379.76x = 11,372,179,727.05
  5. Step 5: Solve for x
    x = 11,372,179,727.05/123,379.76
  6. Step 6: Final answer
    x = 92,172.17

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1.5x scale

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.