Home / 111,843.24-154,347.94-64,105.80

Finding the Fourth Proportional to 111,843.24, 154,347.94 and 64,105.80

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Solution

The fourth proportional to 111,843.24, 154,347.94 and 64,105.80 is: 88,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,843.24 : 154,347.94 = 64,105.80 : x
  2. Step 2: Convert to fraction form
    111,843.24/154,347.94 = 64,105.80/x
  3. Step 3: Cross multiply
    111,843.24x = 154,347.94 × 64,105.80
  4. Step 4: Simplify right side
    111,843.24x = 9,894,598,172.05
  5. Step 5: Solve for x
    x = 9,894,598,172.05/111,843.24
  6. Step 6: Final answer
    x = 88,468.45

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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.