Home / 123,979.44-171,092.24-67,390.80

Finding the Fourth Proportional to 123,979.44, 171,092.24 and 67,390.80

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Solution

The fourth proportional to 123,979.44, 171,092.24 and 67,390.80 is: 92,999.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,979.44 : 171,092.24 = 67,390.80 : x
  2. Step 2: Convert to fraction form
    123,979.44/171,092.24 = 67,390.80/x
  3. Step 3: Cross multiply
    123,979.44x = 171,092.24 × 67,390.80
  4. Step 4: Simplify right side
    123,979.44x = 11,530,042,927.39
  5. Step 5: Solve for x
    x = 11,530,042,927.39/123,979.44
  6. Step 6: Final answer
    x = 92,999.64

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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.