Home / 100,664.39-150,993.13-25,785.19

Finding the Fourth Proportional to 100,664.39, 150,993.13 and 25,785.19

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Solution

The fourth proportional to 100,664.39, 150,993.13 and 25,785.19 is: 38,676.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,664.39 : 150,993.13 = 25,785.19 : x
  2. Step 2: Convert to fraction form
    100,664.39/150,993.13 = 25,785.19/x
  3. Step 3: Cross multiply
    100,664.39x = 150,993.13 × 25,785.19
  4. Step 4: Simplify right side
    100,664.39x = 3,893,385,841.84
  5. Step 5: Solve for x
    x = 3,893,385,841.84/100,664.39
  6. Step 6: Final answer
    x = 38,676.89

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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.