Home / 126,936.43-190,444.44-76,390.60

Finding the Fourth Proportional to 126,936.43, 190,444.44 and 76,390.60

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Solution

The fourth proportional to 126,936.43, 190,444.44 and 76,390.60 is: 114,609.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,936.43 : 190,444.44 = 76,390.60 : x
  2. Step 2: Convert to fraction form
    126,936.43/190,444.44 = 76,390.60/x
  3. Step 3: Cross multiply
    126,936.43x = 190,444.44 × 76,390.60
  4. Step 4: Simplify right side
    126,936.43x = 14,548,165,038.26
  5. Step 5: Solve for x
    x = 14,548,165,038.26/126,936.43
  6. Step 6: Final answer
    x = 114,609.85

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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.