Home / 103,213.62-154,842.30-33,142.14

Finding the Fourth Proportional to 103,213.62, 154,842.30 and 33,142.14

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Solution

The fourth proportional to 103,213.62, 154,842.30 and 33,142.14 is: 49,720.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,213.62 : 154,842.30 = 33,142.14 : x
  2. Step 2: Convert to fraction form
    103,213.62/154,842.30 = 33,142.14/x
  3. Step 3: Cross multiply
    103,213.62x = 154,842.30 × 33,142.14
  4. Step 4: Simplify right side
    103,213.62x = 5,131,805,184.52
  5. Step 5: Solve for x
    x = 5,131,805,184.52/103,213.62
  6. Step 6: Final answer
    x = 49,720.23

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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.