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Finding the Fourth Proportional to 126,763.89, 174,882.90 and 73,020.12

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Solution

The fourth proportional to 126,763.89, 174,882.90 and 73,020.12 is: 100,738.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,763.89 : 174,882.90 = 73,020.12 : x
  2. Step 2: Convert to fraction form
    126,763.89/174,882.90 = 73,020.12/x
  3. Step 3: Cross multiply
    126,763.89x = 174,882.90 × 73,020.12
  4. Step 4: Simplify right side
    126,763.89x = 12,769,970,343.95
  5. Step 5: Solve for x
    x = 12,769,970,343.95/126,763.89
  6. Step 6: Final answer
    x = 100,738.23

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1.5x scale

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.