Home / 274,456.11-411,402.28-105,930.75

Finding the Fourth Proportional to 274,456.11, 411,402.28 and 105,930.75

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Solution

The fourth proportional to 274,456.11, 411,402.28 and 105,930.75 is: 158,787.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,456.11 : 411,402.28 = 105,930.75 : x
  2. Step 2: Convert to fraction form
    274,456.11/411,402.28 = 105,930.75/x
  3. Step 3: Cross multiply
    274,456.11x = 411,402.28 × 105,930.75
  4. Step 4: Simplify right side
    274,456.11x = 43,580,152,072.11
  5. Step 5: Solve for x
    x = 43,580,152,072.11/274,456.11
  6. Step 6: Final answer
    x = 158,787.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.