Home / 100,664.67-150,993.55-25,785.47

Finding the Fourth Proportional to 100,664.67, 150,993.55 and 25,785.47

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Solution

The fourth proportional to 100,664.67, 150,993.55 and 25,785.47 is: 38,677.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,664.67 : 150,993.55 = 25,785.47 : x
  2. Step 2: Convert to fraction form
    100,664.67/150,993.55 = 25,785.47/x
  3. Step 3: Cross multiply
    100,664.67x = 150,993.55 × 25,785.47
  4. Step 4: Simplify right side
    100,664.67x = 3,893,439,214.10
  5. Step 5: Solve for x
    x = 3,893,439,214.10/100,664.67
  6. Step 6: Final answer
    x = 38,677.31

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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.