Home / 100,209.60-150,399.45-41,087.70

Finding the Fourth Proportional to 100,209.60, 150,399.45 and 41,087.70

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Solution

The fourth proportional to 100,209.60, 150,399.45 and 41,087.70 is: 61,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,209.60 : 150,399.45 = 41,087.70 : x
  2. Step 2: Convert to fraction form
    100,209.60/150,399.45 = 41,087.70/x
  3. Step 3: Cross multiply
    100,209.60x = 150,399.45 × 41,087.70
  4. Step 4: Simplify right side
    100,209.60x = 6,179,567,481.77
  5. Step 5: Solve for x
    x = 6,179,567,481.77/100,209.60
  6. Step 6: Final answer
    x = 61,666.42

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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.