Home / 125,354.72-172,997.16-82,839.44

Finding the Fourth Proportional to 125,354.72, 172,997.16 and 82,839.44

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Solution

The fourth proportional to 125,354.72, 172,997.16 and 82,839.44 is: 114,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,354.72 : 172,997.16 = 82,839.44 : x
  2. Step 2: Convert to fraction form
    125,354.72/172,997.16 = 82,839.44/x
  3. Step 3: Cross multiply
    125,354.72x = 172,997.16 × 82,839.44
  4. Step 4: Simplify right side
    125,354.72x = 14,330,987,855.99
  5. Step 5: Solve for x
    x = 14,330,987,855.99/125,354.72
  6. Step 6: Final answer
    x = 114,323.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.