Home / 100,112.82-150,082.26-40,910.76

Finding the Fourth Proportional to 100,112.82, 150,082.26 and 40,910.76

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Solution

The fourth proportional to 100,112.82, 150,082.26 and 40,910.76 is: 61,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,112.82 : 150,082.26 = 40,910.76 : x
  2. Step 2: Convert to fraction form
    100,112.82/150,082.26 = 40,910.76/x
  3. Step 3: Cross multiply
    100,112.82x = 150,082.26 × 40,910.76
  4. Step 4: Simplify right side
    100,112.82x = 6,139,979,319.12
  5. Step 5: Solve for x
    x = 6,139,979,319.12/100,112.82
  6. Step 6: Final answer
    x = 61,330.60

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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.