Home / 91,392.24-125,840.92-79,997.97

Finding the Fourth Proportional to 91,392.24, 125,840.92 and 79,997.97

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Solution

The fourth proportional to 91,392.24, 125,840.92 and 79,997.97 is: 110,151.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,392.24 : 125,840.92 = 79,997.97 : x
  2. Step 2: Convert to fraction form
    91,392.24/125,840.92 = 79,997.97/x
  3. Step 3: Cross multiply
    91,392.24x = 125,840.92 × 79,997.97
  4. Step 4: Simplify right side
    91,392.24x = 10,067,018,142.93
  5. Step 5: Solve for x
    x = 10,067,018,142.93/91,392.24
  6. Step 6: Final answer
    x = 110,151.78

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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.