Home / 223,943.82-309,042.72-121,969.44

Finding the Fourth Proportional to 223,943.82, 309,042.72 and 121,969.44

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Solution

The fourth proportional to 223,943.82, 309,042.72 and 121,969.44 is: 168,317.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,943.82 : 309,042.72 = 121,969.44 : x
  2. Step 2: Convert to fraction form
    223,943.82/309,042.72 = 121,969.44/x
  3. Step 3: Cross multiply
    223,943.82x = 309,042.72 × 121,969.44
  4. Step 4: Simplify right side
    223,943.82x = 37,693,767,494.48
  5. Step 5: Solve for x
    x = 37,693,767,494.48/223,943.82
  6. Step 6: Final answer
    x = 168,317.96

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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.