Home / 127,135.05-190,733.43-38,383.26

Finding the Fourth Proportional to 127,135.05, 190,733.43 and 38,383.26

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Solution

The fourth proportional to 127,135.05, 190,733.43 and 38,383.26 is: 57,584.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,135.05 : 190,733.43 = 38,383.26 : x
  2. Step 2: Convert to fraction form
    127,135.05/190,733.43 = 38,383.26/x
  3. Step 3: Cross multiply
    127,135.05x = 190,733.43 × 38,383.26
  4. Step 4: Simplify right side
    127,135.05x = 7,320,970,834.38
  5. Step 5: Solve for x
    x = 7,320,970,834.38/127,135.05
  6. Step 6: Final answer
    x = 57,584.21

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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.