Home / 212,942.51-319,555.79-110,454.29

Finding the Fourth Proportional to 212,942.51, 319,555.79 and 110,454.29

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Solution

The fourth proportional to 212,942.51, 319,555.79 and 110,454.29 is: 165,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,942.51 : 319,555.79 = 110,454.29 : x
  2. Step 2: Convert to fraction form
    212,942.51/319,555.79 = 110,454.29/x
  3. Step 3: Cross multiply
    212,942.51x = 319,555.79 × 110,454.29
  4. Step 4: Simplify right side
    212,942.51x = 35,296,306,578.20
  5. Step 5: Solve for x
    x = 35,296,306,578.20/212,942.51
  6. Step 6: Final answer
    x = 165,755.10

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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.