Home / 223,861.03-308,935.80-121,890.44

Finding the Fourth Proportional to 223,861.03, 308,935.80 and 121,890.44

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Solution

The fourth proportional to 223,861.03, 308,935.80 and 121,890.44 is: 168,212.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,861.03 : 308,935.80 = 121,890.44 : x
  2. Step 2: Convert to fraction form
    223,861.03/308,935.80 = 121,890.44/x
  3. Step 3: Cross multiply
    223,861.03x = 308,935.80 × 121,890.44
  4. Step 4: Simplify right side
    223,861.03x = 37,656,321,366.09
  5. Step 5: Solve for x
    x = 37,656,321,366.09/223,861.03
  6. Step 6: Final answer
    x = 168,212.94

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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.