Home / 221,545.80-332,318.70-127,942.20

Finding the Fourth Proportional to 221,545.80, 332,318.70 and 127,942.20

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Solution

The fourth proportional to 221,545.80, 332,318.70 and 127,942.20 is: 191,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,545.80 : 332,318.70 = 127,942.20 : x
  2. Step 2: Convert to fraction form
    221,545.80/332,318.70 = 127,942.20/x
  3. Step 3: Cross multiply
    221,545.80x = 332,318.70 × 127,942.20
  4. Step 4: Simplify right side
    221,545.80x = 42,517,585,579.14
  5. Step 5: Solve for x
    x = 42,517,585,579.14/221,545.80
  6. Step 6: Final answer
    x = 191,913.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.