Home / 126,425.20-174,472.08-72,710.24

Finding the Fourth Proportional to 126,425.20, 174,472.08 and 72,710.24

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Solution

The fourth proportional to 126,425.20, 174,472.08 and 72,710.24 is: 100,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,425.20 : 174,472.08 = 72,710.24 : x
  2. Step 2: Convert to fraction form
    126,425.20/174,472.08 = 72,710.24/x
  3. Step 3: Cross multiply
    126,425.20x = 174,472.08 × 72,710.24
  4. Step 4: Simplify right side
    126,425.20x = 12,685,906,810.10
  5. Step 5: Solve for x
    x = 12,685,906,810.10/126,425.20
  6. Step 6: Final answer
    x = 100,343.18

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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.