Home / 131,390.32-181,249.80-82,974.70

Finding the Fourth Proportional to 131,390.32, 181,249.80 and 82,974.70

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Solution

The fourth proportional to 131,390.32, 181,249.80 and 82,974.70 is: 114,461.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,390.32 : 181,249.80 = 82,974.70 : x
  2. Step 2: Convert to fraction form
    131,390.32/181,249.80 = 82,974.70/x
  3. Step 3: Cross multiply
    131,390.32x = 181,249.80 × 82,974.70
  4. Step 4: Simplify right side
    131,390.32x = 15,039,147,780.06
  5. Step 5: Solve for x
    x = 15,039,147,780.06/131,390.32
  6. Step 6: Final answer
    x = 114,461.61

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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.