Home / 126,629.56-174,748.46-72,895

Finding the Fourth Proportional to 126,629.56, 174,748.46 and 72,895

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Solution

The fourth proportional to 126,629.56, 174,748.46 and 72,895 is: 100,594.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,629.56 : 174,748.46 = 72,895 : x
  2. Step 2: Convert to fraction form
    126,629.56/174,748.46 = 72,895/x
  3. Step 3: Cross multiply
    126,629.56x = 174,748.46 × 72,895
  4. Step 4: Simplify right side
    126,629.56x = 12,738,288,991.70
  5. Step 5: Solve for x
    x = 12,738,288,991.70/126,629.56
  6. Step 6: Final answer
    x = 100,594.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.