Home / 202,112.43-278,922.07-111,471.18

Finding the Fourth Proportional to 202,112.43, 278,922.07 and 111,471.18

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Solution

The fourth proportional to 202,112.43, 278,922.07 and 111,471.18 is: 153,834.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,112.43 : 278,922.07 = 111,471.18 : x
  2. Step 2: Convert to fraction form
    202,112.43/278,922.07 = 111,471.18/x
  3. Step 3: Cross multiply
    202,112.43x = 278,922.07 × 111,471.18
  4. Step 4: Simplify right side
    202,112.43x = 31,091,772,270.94
  5. Step 5: Solve for x
    x = 31,091,772,270.94/202,112.43
  6. Step 6: Final answer
    x = 153,834.04

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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.