Home / 111,919.62-154,463.82-64,163.73

Finding the Fourth Proportional to 111,919.62, 154,463.82 and 64,163.73

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Solution

The fourth proportional to 111,919.62, 154,463.82 and 64,163.73 is: 88,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,919.62 : 154,463.82 = 64,163.73 : x
  2. Step 2: Convert to fraction form
    111,919.62/154,463.82 = 64,163.73/x
  3. Step 3: Cross multiply
    111,919.62x = 154,463.82 × 64,163.73
  4. Step 4: Simplify right side
    111,919.62x = 9,910,974,841.25
  5. Step 5: Solve for x
    x = 9,910,974,841.25/111,919.62
  6. Step 6: Final answer
    x = 88,554.40

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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.