Home / 100,747.09-151,115.16-30,620.93

Finding the Fourth Proportional to 100,747.09, 151,115.16 and 30,620.93

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Solution

The fourth proportional to 100,747.09, 151,115.16 and 30,620.93 is: 45,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,747.09 : 151,115.16 = 30,620.93 : x
  2. Step 2: Convert to fraction form
    100,747.09/151,115.16 = 30,620.93/x
  3. Step 3: Cross multiply
    100,747.09x = 151,115.16 × 30,620.93
  4. Step 4: Simplify right side
    100,747.09x = 4,627,286,736.30
  5. Step 5: Solve for x
    x = 4,627,286,736.30/100,747.09
  6. Step 6: Final answer
    x = 45,929.73

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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.