Home / 100,821.57-151,325.70-50,936.77

Finding the Fourth Proportional to 100,821.57, 151,325.70 and 50,936.77

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Solution

The fourth proportional to 100,821.57, 151,325.70 and 50,936.77 is: 76,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,821.57 : 151,325.70 = 50,936.77 : x
  2. Step 2: Convert to fraction form
    100,821.57/151,325.70 = 50,936.77/x
  3. Step 3: Cross multiply
    100,821.57x = 151,325.70 × 50,936.77
  4. Step 4: Simplify right side
    100,821.57x = 7,708,042,375.99
  5. Step 5: Solve for x
    x = 7,708,042,375.99/100,821.57
  6. Step 6: Final answer
    x = 76,452.31

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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.