Home / 209,906.11-289,670.51-119,262.19

Finding the Fourth Proportional to 209,906.11, 289,670.51 and 119,262.19

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Solution

The fourth proportional to 209,906.11, 289,670.51 and 119,262.19 is: 164,581.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,906.11 : 289,670.51 = 119,262.19 : x
  2. Step 2: Convert to fraction form
    209,906.11/289,670.51 = 119,262.19/x
  3. Step 3: Cross multiply
    209,906.11x = 289,670.51 × 119,262.19
  4. Step 4: Simplify right side
    209,906.11x = 34,546,739,614.03
  5. Step 5: Solve for x
    x = 34,546,739,614.03/209,906.11
  6. Step 6: Final answer
    x = 164,581.87

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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.