Home / 101,012.67-151,519.41-30,891.78

Finding the Fourth Proportional to 101,012.67, 151,519.41 and 30,891.78

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Solution

The fourth proportional to 101,012.67, 151,519.41 and 30,891.78 is: 46,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,012.67 : 151,519.41 = 30,891.78 : x
  2. Step 2: Convert to fraction form
    101,012.67/151,519.41 = 30,891.78/x
  3. Step 3: Cross multiply
    101,012.67x = 151,519.41 × 30,891.78
  4. Step 4: Simplify right side
    101,012.67x = 4,680,704,279.45
  5. Step 5: Solve for x
    x = 4,680,704,279.45/101,012.67
  6. Step 6: Final answer
    x = 46,337.79

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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.