Home / 201,723.20-278,379.84-111,082.38

Finding the Fourth Proportional to 201,723.20, 278,379.84 and 111,082.38

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Solution

The fourth proportional to 201,723.20, 278,379.84 and 111,082.38 is: 153,294.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,723.20 : 278,379.84 = 111,082.38 : x
  2. Step 2: Convert to fraction form
    201,723.20/278,379.84 = 111,082.38/x
  3. Step 3: Cross multiply
    201,723.20x = 278,379.84 × 111,082.38
  4. Step 4: Simplify right side
    201,723.20x = 30,923,095,171.22
  5. Step 5: Solve for x
    x = 30,923,095,171.22/201,723.20
  6. Step 6: Final answer
    x = 153,294.69

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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.