Home / 126,821.30-174,615.06-107,661.37

Finding the Fourth Proportional to 126,821.30, 174,615.06 and 107,661.37

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Solution

The fourth proportional to 126,821.30, 174,615.06 and 107,661.37 is: 148,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,821.30 : 174,615.06 = 107,661.37 : x
  2. Step 2: Convert to fraction form
    126,821.30/174,615.06 = 107,661.37/x
  3. Step 3: Cross multiply
    126,821.30x = 174,615.06 × 107,661.37
  4. Step 4: Simplify right side
    126,821.30x = 18,799,295,709.16
  5. Step 5: Solve for x
    x = 18,799,295,709.16/126,821.30
  6. Step 6: Final answer
    x = 148,234.53

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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.