Home / 126,729.35-174,930.21-73,035.80

Finding the Fourth Proportional to 126,729.35, 174,930.21 and 73,035.80

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Solution

The fourth proportional to 126,729.35, 174,930.21 and 73,035.80 is: 100,814.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,729.35 : 174,930.21 = 73,035.80 : x
  2. Step 2: Convert to fraction form
    126,729.35/174,930.21 = 73,035.80/x
  3. Step 3: Cross multiply
    126,729.35x = 174,930.21 × 73,035.80
  4. Step 4: Simplify right side
    126,729.35x = 12,776,166,956.87
  5. Step 5: Solve for x
    x = 12,776,166,956.87/126,729.35
  6. Step 6: Final answer
    x = 100,814.59

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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.