Home / 100,665.14-150,997.26-25,785.14

Finding the Fourth Proportional to 100,665.14, 150,997.26 and 25,785.14

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Solution

The fourth proportional to 100,665.14, 150,997.26 and 25,785.14 is: 38,677.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,665.14 : 150,997.26 = 25,785.14 : x
  2. Step 2: Convert to fraction form
    100,665.14/150,997.26 = 25,785.14/x
  3. Step 3: Cross multiply
    100,665.14x = 150,997.26 × 25,785.14
  4. Step 4: Simplify right side
    100,665.14x = 3,893,485,488.72
  5. Step 5: Solve for x
    x = 3,893,485,488.72/100,665.14
  6. Step 6: Final answer
    x = 38,677.59

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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.