Home / 121,286.56-181,949.28-51,176.20

Finding the Fourth Proportional to 121,286.56, 181,949.28 and 51,176.20

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Solution

The fourth proportional to 121,286.56, 181,949.28 and 51,176.20 is: 76,772.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,286.56 : 181,949.28 = 51,176.20 : x
  2. Step 2: Convert to fraction form
    121,286.56/181,949.28 = 51,176.20/x
  3. Step 3: Cross multiply
    121,286.56x = 181,949.28 × 51,176.20
  4. Step 4: Simplify right side
    121,286.56x = 9,311,472,743.14
  5. Step 5: Solve for x
    x = 9,311,472,743.14/121,286.56
  6. Step 6: Final answer
    x = 76,772.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.