Home / 126,912.09-175,157.07-73,186.41

Finding the Fourth Proportional to 126,912.09, 175,157.07 and 73,186.41

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Solution

The fourth proportional to 126,912.09, 175,157.07 and 73,186.41 is: 101,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,912.09 : 175,157.07 = 73,186.41 : x
  2. Step 2: Convert to fraction form
    126,912.09/175,157.07 = 73,186.41/x
  3. Step 3: Cross multiply
    126,912.09x = 175,157.07 × 73,186.41
  4. Step 4: Simplify right side
    126,912.09x = 12,819,117,139.42
  5. Step 5: Solve for x
    x = 12,819,117,139.42/126,912.09
  6. Step 6: Final answer
    x = 101,007.85

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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.