Home / 127,256.49-190,887.47-38,509.85

Finding the Fourth Proportional to 127,256.49, 190,887.47 and 38,509.85

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Solution

The fourth proportional to 127,256.49, 190,887.47 and 38,509.85 is: 57,765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,256.49 : 190,887.47 = 38,509.85 : x
  2. Step 2: Convert to fraction form
    127,256.49/190,887.47 = 38,509.85/x
  3. Step 3: Cross multiply
    127,256.49x = 190,887.47 × 38,509.85
  4. Step 4: Simplify right side
    127,256.49x = 7,351,048,265.66
  5. Step 5: Solve for x
    x = 7,351,048,265.66/127,256.49
  6. Step 6: Final answer
    x = 57,765.61

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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.