Home / 219,651.12-303,118.32-119,049.12

Finding the Fourth Proportional to 219,651.12, 303,118.32 and 119,049.12

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Solution

The fourth proportional to 219,651.12, 303,118.32 and 119,049.12 is: 164,287.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,651.12 : 303,118.32 = 119,049.12 : x
  2. Step 2: Convert to fraction form
    219,651.12/303,118.32 = 119,049.12/x
  3. Step 3: Cross multiply
    219,651.12x = 303,118.32 × 119,049.12
  4. Step 4: Simplify right side
    219,651.12x = 36,085,969,251.88
  5. Step 5: Solve for x
    x = 36,085,969,251.88/219,651.12
  6. Step 6: Final answer
    x = 164,287.66

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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.