Home / 131,375.41-181,298.26-74,786.78

Finding the Fourth Proportional to 131,375.41, 181,298.26 and 74,786.78

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Solution

The fourth proportional to 131,375.41, 181,298.26 and 74,786.78 is: 103,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,375.41 : 181,298.26 = 74,786.78 : x
  2. Step 2: Convert to fraction form
    131,375.41/181,298.26 = 74,786.78/x
  3. Step 3: Cross multiply
    131,375.41x = 181,298.26 × 74,786.78
  4. Step 4: Simplify right side
    131,375.41x = 13,558,713,085.00
  5. Step 5: Solve for x
    x = 13,558,713,085.00/131,375.41
  6. Step 6: Final answer
    x = 103,205.87

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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.