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Finding the Fourth Proportional to 193,555.84, 267,039.60 and 121,942.24

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Solution

The fourth proportional to 193,555.84, 267,039.60 and 121,942.24 is: 168,237.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,555.84 : 267,039.60 = 121,942.24 : x
  2. Step 2: Convert to fraction form
    193,555.84/267,039.60 = 121,942.24/x
  3. Step 3: Cross multiply
    193,555.84x = 267,039.60 × 121,942.24
  4. Step 4: Simplify right side
    193,555.84x = 32,563,406,992.70
  5. Step 5: Solve for x
    x = 32,563,406,992.70/193,555.84
  6. Step 6: Final answer
    x = 168,237.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.