Home / 221,520.59-305,694.49-126,025.23

Finding the Fourth Proportional to 221,520.59, 305,694.49 and 126,025.23

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Solution

The fourth proportional to 221,520.59, 305,694.49 and 126,025.23 is: 173,912.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,520.59 : 305,694.49 = 126,025.23 : x
  2. Step 2: Convert to fraction form
    221,520.59/305,694.49 = 126,025.23/x
  3. Step 3: Cross multiply
    221,520.59x = 305,694.49 × 126,025.23
  4. Step 4: Simplify right side
    221,520.59x = 38,525,218,411.98
  5. Step 5: Solve for x
    x = 38,525,218,411.98/221,520.59
  6. Step 6: Final answer
    x = 173,912.58

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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.