Home / 172,997.36-238,695.62-105,012.65

Finding the Fourth Proportional to 172,997.36, 238,695.62 and 105,012.65

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Solution

The fourth proportional to 172,997.36, 238,695.62 and 105,012.65 is: 144,892.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,997.36 : 238,695.62 = 105,012.65 : x
  2. Step 2: Convert to fraction form
    172,997.36/238,695.62 = 105,012.65/x
  3. Step 3: Cross multiply
    172,997.36x = 238,695.62 × 105,012.65
  4. Step 4: Simplify right side
    172,997.36x = 25,066,059,074.53
  5. Step 5: Solve for x
    x = 25,066,059,074.53/172,997.36
  6. Step 6: Final answer
    x = 144,892.73

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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.