Home / 115,299.65-172,982.97-47,819.31

Finding the Fourth Proportional to 115,299.65, 172,982.97 and 47,819.31

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Solution

The fourth proportional to 115,299.65, 172,982.97 and 47,819.31 is: 71,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,299.65 : 172,982.97 = 47,819.31 : x
  2. Step 2: Convert to fraction form
    115,299.65/172,982.97 = 47,819.31/x
  3. Step 3: Cross multiply
    115,299.65x = 172,982.97 × 47,819.31
  4. Step 4: Simplify right side
    115,299.65x = 8,271,926,028.05
  5. Step 5: Solve for x
    x = 8,271,926,028.05/115,299.65
  6. Step 6: Final answer
    x = 71,742.85

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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.