Home / 223,456.10-308,375.39-121,488.43

Finding the Fourth Proportional to 223,456.10, 308,375.39 and 121,488.43

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Solution

The fourth proportional to 223,456.10, 308,375.39 and 121,488.43 is: 167,657.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,456.10 : 308,375.39 = 121,488.43 : x
  2. Step 2: Convert to fraction form
    223,456.10/308,375.39 = 121,488.43/x
  3. Step 3: Cross multiply
    223,456.10x = 308,375.39 × 121,488.43
  4. Step 4: Simplify right side
    223,456.10x = 37,464,040,837.75
  5. Step 5: Solve for x
    x = 37,464,040,837.75/223,456.10
  6. Step 6: Final answer
    x = 167,657.27

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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.