Home / 127,918.27-191,877.86-39,171.39

Finding the Fourth Proportional to 127,918.27, 191,877.86 and 39,171.39

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Solution

The fourth proportional to 127,918.27, 191,877.86 and 39,171.39 is: 58,757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,918.27 : 191,877.86 = 39,171.39 : x
  2. Step 2: Convert to fraction form
    127,918.27/191,877.86 = 39,171.39/x
  3. Step 3: Cross multiply
    127,918.27x = 191,877.86 × 39,171.39
  4. Step 4: Simplify right side
    127,918.27x = 7,516,122,486.43
  5. Step 5: Solve for x
    x = 7,516,122,486.43/127,918.27
  6. Step 6: Final answer
    x = 58,757.22

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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.