Home / 201,936.20-278,670.66-111,292.25

Finding the Fourth Proportional to 201,936.20, 278,670.66 and 111,292.25

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Solution

The fourth proportional to 201,936.20, 278,670.66 and 111,292.25 is: 153,582.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,936.20 : 278,670.66 = 111,292.25 : x
  2. Step 2: Convert to fraction form
    201,936.20/278,670.66 = 111,292.25/x
  3. Step 3: Cross multiply
    201,936.20x = 278,670.66 × 111,292.25
  4. Step 4: Simplify right side
    201,936.20x = 31,013,884,760.39
  5. Step 5: Solve for x
    x = 31,013,884,760.39/201,936.20
  6. Step 6: Final answer
    x = 153,582.59

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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.