Home / 221,517.59-305,690.36-126,022.23

Finding the Fourth Proportional to 221,517.59, 305,690.36 and 126,022.23

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Solution

The fourth proportional to 221,517.59, 305,690.36 and 126,022.23 is: 173,908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,517.59 : 305,690.36 = 126,022.23 : x
  2. Step 2: Convert to fraction form
    221,517.59/305,690.36 = 126,022.23/x
  3. Step 3: Cross multiply
    221,517.59x = 305,690.36 × 126,022.23
  4. Step 4: Simplify right side
    221,517.59x = 38,523,780,226.59
  5. Step 5: Solve for x
    x = 38,523,780,226.59/221,517.59
  6. Step 6: Final answer
    x = 173,908.45

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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.