Home / 127,910.20-191,755.89-49,081

Finding the Fourth Proportional to 127,910.20, 191,755.89 and 49,081

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Solution

The fourth proportional to 127,910.20, 191,755.89 and 49,081 is: 73,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,910.20 : 191,755.89 = 49,081 : x
  2. Step 2: Convert to fraction form
    127,910.20/191,755.89 = 49,081/x
  3. Step 3: Cross multiply
    127,910.20x = 191,755.89 × 49,081
  4. Step 4: Simplify right side
    127,910.20x = 9,411,570,837.09
  5. Step 5: Solve for x
    x = 9,411,570,837.09/127,910.20
  6. Step 6: Final answer
    x = 73,579.52

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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.