Home / 187,763.38-259,137.57-107,172.43

Finding the Fourth Proportional to 187,763.38, 259,137.57 and 107,172.43

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Solution

The fourth proportional to 187,763.38, 259,137.57 and 107,172.43 is: 147,911.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,763.38 : 259,137.57 = 107,172.43 : x
  2. Step 2: Convert to fraction form
    187,763.38/259,137.57 = 107,172.43/x
  3. Step 3: Cross multiply
    187,763.38x = 259,137.57 × 107,172.43
  4. Step 4: Simplify right side
    187,763.38x = 27,772,403,081.20
  5. Step 5: Solve for x
    x = 27,772,403,081.20/187,763.38
  6. Step 6: Final answer
    x = 147,911.71

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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.