Home / 127,916.13-191,874.66-39,169.28

Finding the Fourth Proportional to 127,916.13, 191,874.66 and 39,169.28

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Solution

The fourth proportional to 127,916.13, 191,874.66 and 39,169.28 is: 58,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,916.13 : 191,874.66 = 39,169.28 : x
  2. Step 2: Convert to fraction form
    127,916.13/191,874.66 = 39,169.28/x
  3. Step 3: Cross multiply
    127,916.13x = 191,874.66 × 39,169.28
  4. Step 4: Simplify right side
    127,916.13x = 7,515,591,323.07
  5. Step 5: Solve for x
    x = 7,515,591,323.07/127,916.13
  6. Step 6: Final answer
    x = 58,754.05

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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.