Home / 127,858.71-191,781.15-39,112.22

Finding the Fourth Proportional to 127,858.71, 191,781.15 and 39,112.22

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Solution

The fourth proportional to 127,858.71, 191,781.15 and 39,112.22 is: 58,666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,858.71 : 191,781.15 = 39,112.22 : x
  2. Step 2: Convert to fraction form
    127,858.71/191,781.15 = 39,112.22/x
  3. Step 3: Cross multiply
    127,858.71x = 191,781.15 × 39,112.22
  4. Step 4: Simplify right side
    127,858.71x = 7,500,987,083.44
  5. Step 5: Solve for x
    x = 7,500,987,083.44/127,858.71
  6. Step 6: Final answer
    x = 58,666.22

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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.