Home / 209,189.12-288,673.92-119,747.84

Finding the Fourth Proportional to 209,189.12, 288,673.92 and 119,747.84

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Solution

The fourth proportional to 209,189.12, 288,673.92 and 119,747.84 is: 165,247.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,189.12 : 288,673.92 = 119,747.84 : x
  2. Step 2: Convert to fraction form
    209,189.12/288,673.92 = 119,747.84/x
  3. Step 3: Cross multiply
    209,189.12x = 288,673.92 × 119,747.84
  4. Step 4: Simplify right side
    209,189.12x = 34,568,078,384.33
  5. Step 5: Solve for x
    x = 34,568,078,384.33/209,189.12
  6. Step 6: Final answer
    x = 165,247.97

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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.