Home / 168,805.28-253,242-75,311.04

Finding the Fourth Proportional to 168,805.28, 253,242 and 75,311.04

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Solution

The fourth proportional to 168,805.28, 253,242 and 75,311.04 is: 112,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,805.28 : 253,242 = 75,311.04 : x
  2. Step 2: Convert to fraction form
    168,805.28/253,242 = 75,311.04/x
  3. Step 3: Cross multiply
    168,805.28x = 253,242 × 75,311.04
  4. Step 4: Simplify right side
    168,805.28x = 19,071,918,391.68
  5. Step 5: Solve for x
    x = 19,071,918,391.68/168,805.28
  6. Step 6: Final answer
    x = 112,981.76

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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.