Home / 126,423.28-174,469.17-72,708.27

Finding the Fourth Proportional to 126,423.28, 174,469.17 and 72,708.27

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Solution

The fourth proportional to 126,423.28, 174,469.17 and 72,708.27 is: 100,340.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,423.28 : 174,469.17 = 72,708.27 : x
  2. Step 2: Convert to fraction form
    126,423.28/174,469.17 = 72,708.27/x
  3. Step 3: Cross multiply
    126,423.28x = 174,469.17 × 72,708.27
  4. Step 4: Simplify right side
    126,423.28x = 12,685,351,519.04
  5. Step 5: Solve for x
    x = 12,685,351,519.04/126,423.28
  6. Step 6: Final answer
    x = 100,340.31

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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.