Home / 109,183.50-150,680.25-66,192.48

Finding the Fourth Proportional to 109,183.50, 150,680.25 and 66,192.48

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Solution

The fourth proportional to 109,183.50, 150,680.25 and 66,192.48 is: 91,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,183.50 : 150,680.25 = 66,192.48 : x
  2. Step 2: Convert to fraction form
    109,183.50/150,680.25 = 66,192.48/x
  3. Step 3: Cross multiply
    109,183.50x = 150,680.25 × 66,192.48
  4. Step 4: Simplify right side
    109,183.50x = 9,973,899,434.52
  5. Step 5: Solve for x
    x = 9,973,899,434.52/109,183.50
  6. Step 6: Final answer
    x = 91,349.88

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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.