Home / 209,668.08-289,141.61-140,912.85

Finding the Fourth Proportional to 209,668.08, 289,141.61 and 140,912.85

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Solution

The fourth proportional to 209,668.08, 289,141.61 and 140,912.85 is: 194,325.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,668.08 : 289,141.61 = 140,912.85 : x
  2. Step 2: Convert to fraction form
    209,668.08/289,141.61 = 140,912.85/x
  3. Step 3: Cross multiply
    209,668.08x = 289,141.61 × 140,912.85
  4. Step 4: Simplify right side
    209,668.08x = 40,743,767,614.12
  5. Step 5: Solve for x
    x = 40,743,767,614.12/209,668.08
  6. Step 6: Final answer
    x = 194,325.09

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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.