Home / 154,636.90-231,991.80-49,456.78

Finding the Fourth Proportional to 154,636.90, 231,991.80 and 49,456.78

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Solution

The fourth proportional to 154,636.90, 231,991.80 and 49,456.78 is: 74,196.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,636.90 : 231,991.80 = 49,456.78 : x
  2. Step 2: Convert to fraction form
    154,636.90/231,991.80 = 49,456.78/x
  3. Step 3: Cross multiply
    154,636.90x = 231,991.80 × 49,456.78
  4. Step 4: Simplify right side
    154,636.90x = 11,473,567,414.40
  5. Step 5: Solve for x
    x = 11,473,567,414.40/154,636.90
  6. Step 6: Final answer
    x = 74,196.83

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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.