Home / 100,176.72-150,279.72-30,061.56

Finding the Fourth Proportional to 100,176.72, 150,279.72 and 30,061.56

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Solution

The fourth proportional to 100,176.72, 150,279.72 and 30,061.56 is: 45,096.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,176.72 : 150,279.72 = 30,061.56 : x
  2. Step 2: Convert to fraction form
    100,176.72/150,279.72 = 30,061.56/x
  3. Step 3: Cross multiply
    100,176.72x = 150,279.72 × 30,061.56
  4. Step 4: Simplify right side
    100,176.72x = 4,517,642,819.56
  5. Step 5: Solve for x
    x = 4,517,642,819.56/100,176.72
  6. Step 6: Final answer
    x = 45,096.73

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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.