Home / 126,997.71-190,528.25-89,630.78

Finding the Fourth Proportional to 126,997.71, 190,528.25 and 89,630.78

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Solution

The fourth proportional to 126,997.71, 190,528.25 and 89,630.78 is: 134,468.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,997.71 : 190,528.25 = 89,630.78 : x
  2. Step 2: Convert to fraction form
    126,997.71/190,528.25 = 89,630.78/x
  3. Step 3: Cross multiply
    126,997.71x = 190,528.25 × 89,630.78
  4. Step 4: Simplify right side
    126,997.71x = 17,077,194,258.74
  5. Step 5: Solve for x
    x = 17,077,194,258.74/126,997.71
  6. Step 6: Final answer
    x = 134,468.52

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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.