Home / 126,895.20-190,256.40-47,997.60

Finding the Fourth Proportional to 126,895.20, 190,256.40 and 47,997.60

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Solution

The fourth proportional to 126,895.20, 190,256.40 and 47,997.60 is: 71,963.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,895.20 : 190,256.40 = 47,997.60 : x
  2. Step 2: Convert to fraction form
    126,895.20/190,256.40 = 47,997.60/x
  3. Step 3: Cross multiply
    126,895.20x = 190,256.40 × 47,997.60
  4. Step 4: Simplify right side
    126,895.20x = 9,131,850,584.64
  5. Step 5: Solve for x
    x = 9,131,850,584.64/126,895.20
  6. Step 6: Final answer
    x = 71,963.72

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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.