Home / 126,678.27-174,791.70-72,229.41

Finding the Fourth Proportional to 126,678.27, 174,791.70 and 72,229.41

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Solution

The fourth proportional to 126,678.27, 174,791.70 and 72,229.41 is: 99,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,678.27 : 174,791.70 = 72,229.41 : x
  2. Step 2: Convert to fraction form
    126,678.27/174,791.70 = 72,229.41/x
  3. Step 3: Cross multiply
    126,678.27x = 174,791.70 × 72,229.41
  4. Step 4: Simplify right side
    126,678.27x = 12,625,101,363.90
  5. Step 5: Solve for x
    x = 12,625,101,363.90/126,678.27
  6. Step 6: Final answer
    x = 99,662.72

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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.