Home / 223,623.11-308,605.53-121,654.31

Finding the Fourth Proportional to 223,623.11, 308,605.53 and 121,654.31

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Solution

The fourth proportional to 223,623.11, 308,605.53 and 121,654.31 is: 167,886.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,623.11 : 308,605.53 = 121,654.31 : x
  2. Step 2: Convert to fraction form
    223,623.11/308,605.53 = 121,654.31/x
  3. Step 3: Cross multiply
    223,623.11x = 308,605.53 × 121,654.31
  4. Step 4: Simplify right side
    223,623.11x = 37,543,192,814.33
  5. Step 5: Solve for x
    x = 37,543,192,814.33/223,623.11
  6. Step 6: Final answer
    x = 167,886.02

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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.