Home / 126,500.22-174,576.87-72,785.34

Finding the Fourth Proportional to 126,500.22, 174,576.87 and 72,785.34

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Solution

The fourth proportional to 126,500.22, 174,576.87 and 72,785.34 is: 100,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,500.22 : 174,576.87 = 72,785.34 : x
  2. Step 2: Convert to fraction form
    126,500.22/174,576.87 = 72,785.34/x
  3. Step 3: Cross multiply
    126,500.22x = 174,576.87 × 72,785.34
  4. Step 4: Simplify right side
    126,500.22x = 12,706,636,839.09
  5. Step 5: Solve for x
    x = 12,706,636,839.09/126,500.22
  6. Step 6: Final answer
    x = 100,447.55

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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.