Home / 209,523.68-289,173.15-117,653.27

Finding the Fourth Proportional to 209,523.68, 289,173.15 and 117,653.27

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Solution

The fourth proportional to 209,523.68, 289,173.15 and 117,653.27 is: 162,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,523.68 : 289,173.15 = 117,653.27 : x
  2. Step 2: Convert to fraction form
    209,523.68/289,173.15 = 117,653.27/x
  3. Step 3: Cross multiply
    209,523.68x = 289,173.15 × 117,653.27
  4. Step 4: Simplify right side
    209,523.68x = 34,022,166,105.43
  5. Step 5: Solve for x
    x = 34,022,166,105.43/209,523.68
  6. Step 6: Final answer
    x = 162,378.62

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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.