Home / 188,111.75-259,601.70-103,231.85

Finding the Fourth Proportional to 188,111.75, 259,601.70 and 103,231.85

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Solution

The fourth proportional to 188,111.75, 259,601.70 and 103,231.85 is: 142,464.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,111.75 : 259,601.70 = 103,231.85 : x
  2. Step 2: Convert to fraction form
    188,111.75/259,601.70 = 103,231.85/x
  3. Step 3: Cross multiply
    188,111.75x = 259,601.70 × 103,231.85
  4. Step 4: Simplify right side
    188,111.75x = 26,799,162,456.14
  5. Step 5: Solve for x
    x = 26,799,162,456.14/188,111.75
  6. Step 6: Final answer
    x = 142,464.06

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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.