Home / 188,318.80-259,863.40-111,832.12

Finding the Fourth Proportional to 188,318.80, 259,863.40 and 111,832.12

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Solution

The fourth proportional to 188,318.80, 259,863.40 and 111,832.12 is: 154,318.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,318.80 : 259,863.40 = 111,832.12 : x
  2. Step 2: Convert to fraction form
    188,318.80/259,863.40 = 111,832.12/x
  3. Step 3: Cross multiply
    188,318.80x = 259,863.40 × 111,832.12
  4. Step 4: Simplify right side
    188,318.80x = 29,061,074,932.41
  5. Step 5: Solve for x
    x = 29,061,074,932.41/188,318.80
  6. Step 6: Final answer
    x = 154,318.50

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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.