Home / 100,185.28-150,039.39-57,976.38

Finding the Fourth Proportional to 100,185.28, 150,039.39 and 57,976.38

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Solution

The fourth proportional to 100,185.28, 150,039.39 and 57,976.38 is: 86,826.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,185.28 : 150,039.39 = 57,976.38 : x
  2. Step 2: Convert to fraction form
    100,185.28/150,039.39 = 57,976.38/x
  3. Step 3: Cross multiply
    100,185.28x = 150,039.39 × 57,976.38
  4. Step 4: Simplify right side
    100,185.28x = 8,698,740,689.61
  5. Step 5: Solve for x
    x = 8,698,740,689.61/100,185.28
  6. Step 6: Final answer
    x = 86,826.53

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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.