Home / 201,853.05-278,555.90-111,206.92

Finding the Fourth Proportional to 201,853.05, 278,555.90 and 111,206.92

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Solution

The fourth proportional to 201,853.05, 278,555.90 and 111,206.92 is: 153,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,853.05 : 278,555.90 = 111,206.92 : x
  2. Step 2: Convert to fraction form
    201,853.05/278,555.90 = 111,206.92/x
  3. Step 3: Cross multiply
    201,853.05x = 278,555.90 × 111,206.92
  4. Step 4: Simplify right side
    201,853.05x = 30,977,342,294.05
  5. Step 5: Solve for x
    x = 30,977,342,294.05/201,853.05
  6. Step 6: Final answer
    x = 153,464.83

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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.