Home / 115,382.38-159,227.83-64,395.11

Finding the Fourth Proportional to 115,382.38, 159,227.83 and 64,395.11

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Solution

The fourth proportional to 115,382.38, 159,227.83 and 64,395.11 is: 88,865.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,382.38 : 159,227.83 = 64,395.11 : x
  2. Step 2: Convert to fraction form
    115,382.38/159,227.83 = 64,395.11/x
  3. Step 3: Cross multiply
    115,382.38x = 159,227.83 × 64,395.11
  4. Step 4: Simplify right side
    115,382.38x = 10,253,493,210.82
  5. Step 5: Solve for x
    x = 10,253,493,210.82/115,382.38
  6. Step 6: Final answer
    x = 88,865.33

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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.