Home / 100,189.48-150,273.71-52,785.50

Finding the Fourth Proportional to 100,189.48, 150,273.71 and 52,785.50

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Solution

The fourth proportional to 100,189.48, 150,273.71 and 52,785.50 is: 79,172.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,189.48 : 150,273.71 = 52,785.50 : x
  2. Step 2: Convert to fraction form
    100,189.48/150,273.71 = 52,785.50/x
  3. Step 3: Cross multiply
    100,189.48x = 150,273.71 × 52,785.50
  4. Step 4: Simplify right side
    100,189.48x = 7,932,272,919.21
  5. Step 5: Solve for x
    x = 7,932,272,919.21/100,189.48
  6. Step 6: Final answer
    x = 79,172.71

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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.