Home / 201,885.03-278,613.75-111,240.97

Finding the Fourth Proportional to 201,885.03, 278,613.75 and 111,240.97

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Solution

The fourth proportional to 201,885.03, 278,613.75 and 111,240.97 is: 153,519.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,885.03 : 278,613.75 = 111,240.97 : x
  2. Step 2: Convert to fraction form
    201,885.03/278,613.75 = 111,240.97/x
  3. Step 3: Cross multiply
    201,885.03x = 278,613.75 × 111,240.97
  4. Step 4: Simplify right side
    201,885.03x = 30,993,262,900.23
  5. Step 5: Solve for x
    x = 30,993,262,900.23/201,885.03
  6. Step 6: Final answer
    x = 153,519.37

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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.