Home / 127,991.31-191,965.09-34,475.19

Finding the Fourth Proportional to 127,991.31, 191,965.09 and 34,475.19

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Solution

The fourth proportional to 127,991.31, 191,965.09 and 34,475.19 is: 51,706.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,991.31 : 191,965.09 = 34,475.19 : x
  2. Step 2: Convert to fraction form
    127,991.31/191,965.09 = 34,475.19/x
  3. Step 3: Cross multiply
    127,991.31x = 191,965.09 × 34,475.19
  4. Step 4: Simplify right side
    127,991.31x = 6,618,032,778.74
  5. Step 5: Solve for x
    x = 6,618,032,778.74/127,991.31
  6. Step 6: Final answer
    x = 51,706.89

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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.