Home / 127,857.75-191,755.83-39,112.02

Finding the Fourth Proportional to 127,857.75, 191,755.83 and 39,112.02

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Solution

The fourth proportional to 127,857.75, 191,755.83 and 39,112.02 is: 58,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,857.75 : 191,755.83 = 39,112.02 : x
  2. Step 2: Convert to fraction form
    127,857.75/191,755.83 = 39,112.02/x
  3. Step 3: Cross multiply
    127,857.75x = 191,755.83 × 39,112.02
  4. Step 4: Simplify right side
    127,857.75x = 7,499,957,858.08
  5. Step 5: Solve for x
    x = 7,499,957,858.08/127,857.75
  6. Step 6: Final answer
    x = 58,658.61

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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.