Home / 201,711.36-278,359.38-111,065.43

Finding the Fourth Proportional to 201,711.36, 278,359.38 and 111,065.43

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Solution

The fourth proportional to 201,711.36, 278,359.38 and 111,065.43 is: 153,269.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,711.36 : 278,359.38 = 111,065.43 : x
  2. Step 2: Convert to fraction form
    201,711.36/278,359.38 = 111,065.43/x
  3. Step 3: Cross multiply
    201,711.36x = 278,359.38 × 111,065.43
  4. Step 4: Simplify right side
    201,711.36x = 30,916,104,234.23
  5. Step 5: Solve for x
    x = 30,916,104,234.23/201,711.36
  6. Step 6: Final answer
    x = 153,269.03

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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.