Home / 223,514.19-308,447.91-121,539.69

Finding the Fourth Proportional to 223,514.19, 308,447.91 and 121,539.69

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Solution

The fourth proportional to 223,514.19, 308,447.91 and 121,539.69 is: 167,723.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,514.19 : 308,447.91 = 121,539.69 : x
  2. Step 2: Convert to fraction form
    223,514.19/308,447.91 = 121,539.69/x
  3. Step 3: Cross multiply
    223,514.19x = 308,447.91 × 121,539.69
  4. Step 4: Simplify right side
    223,514.19x = 37,488,663,362.55
  5. Step 5: Solve for x
    x = 37,488,663,362.55/223,514.19
  6. Step 6: Final answer
    x = 167,723.86

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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.