Home / 115,044.72-172,608.60-40,175.88

Finding the Fourth Proportional to 115,044.72, 172,608.60 and 40,175.88

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Solution

The fourth proportional to 115,044.72, 172,608.60 and 40,175.88 is: 60,278.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,044.72 : 172,608.60 = 40,175.88 : x
  2. Step 2: Convert to fraction form
    115,044.72/172,608.60 = 40,175.88/x
  3. Step 3: Cross multiply
    115,044.72x = 172,608.60 × 40,175.88
  4. Step 4: Simplify right side
    115,044.72x = 6,934,702,400.57
  5. Step 5: Solve for x
    x = 6,934,702,400.57/115,044.72
  6. Step 6: Final answer
    x = 60,278.32

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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.