Home / 126,195.02-173,794.78-123,439.40

Finding the Fourth Proportional to 126,195.02, 173,794.78 and 123,439.40

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Solution

The fourth proportional to 126,195.02, 173,794.78 and 123,439.40 is: 169,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,195.02 : 173,794.78 = 123,439.40 : x
  2. Step 2: Convert to fraction form
    126,195.02/173,794.78 = 123,439.40/x
  3. Step 3: Cross multiply
    126,195.02x = 173,794.78 × 123,439.40
  4. Step 4: Simplify right side
    126,195.02x = 21,453,123,366.33
  5. Step 5: Solve for x
    x = 21,453,123,366.33/126,195.02
  6. Step 6: Final answer
    x = 169,999.76

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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.