Home / 100,234.20-150,351.30-89,347.80

Finding the Fourth Proportional to 100,234.20, 150,351.30 and 89,347.80

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Solution

The fourth proportional to 100,234.20, 150,351.30 and 89,347.80 is: 134,021.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,234.20 : 150,351.30 = 89,347.80 : x
  2. Step 2: Convert to fraction form
    100,234.20/150,351.30 = 89,347.80/x
  3. Step 3: Cross multiply
    100,234.20x = 150,351.30 × 89,347.80
  4. Step 4: Simplify right side
    100,234.20x = 13,433,557,882.14
  5. Step 5: Solve for x
    x = 13,433,557,882.14/100,234.20
  6. Step 6: Final answer
    x = 134,021.70

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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.