Home / 127,242.39-190,834.43-57,141.75

Finding the Fourth Proportional to 127,242.39, 190,834.43 and 57,141.75

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Solution

The fourth proportional to 127,242.39, 190,834.43 and 57,141.75 is: 85,699.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,242.39 : 190,834.43 = 57,141.75 : x
  2. Step 2: Convert to fraction form
    127,242.39/190,834.43 = 57,141.75/x
  3. Step 3: Cross multiply
    127,242.39x = 190,834.43 × 57,141.75
  4. Step 4: Simplify right side
    127,242.39x = 10,904,613,004.74
  5. Step 5: Solve for x
    x = 10,904,613,004.74/127,242.39
  6. Step 6: Final answer
    x = 85,699.53

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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.