Home / 127,917.13-191,876.16-39,170.28

Finding the Fourth Proportional to 127,917.13, 191,876.16 and 39,170.28

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Solution

The fourth proportional to 127,917.13, 191,876.16 and 39,170.28 is: 58,755.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,917.13 : 191,876.16 = 39,170.28 : x
  2. Step 2: Convert to fraction form
    127,917.13/191,876.16 = 39,170.28/x
  3. Step 3: Cross multiply
    127,917.13x = 191,876.16 × 39,170.28
  4. Step 4: Simplify right side
    127,917.13x = 7,515,842,912.52
  5. Step 5: Solve for x
    x = 7,515,842,912.52/127,917.13
  6. Step 6: Final answer
    x = 58,755.56

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1.5x scale

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.