Home / 209,861.66-289,612.60-114,372.38

Finding the Fourth Proportional to 209,861.66, 289,612.60 and 114,372.38

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Solution

The fourth proportional to 209,861.66, 289,612.60 and 114,372.38 is: 157,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,861.66 : 289,612.60 = 114,372.38 : x
  2. Step 2: Convert to fraction form
    209,861.66/289,612.60 = 114,372.38/x
  3. Step 3: Cross multiply
    209,861.66x = 289,612.60 × 114,372.38
  4. Step 4: Simplify right side
    209,861.66x = 33,123,682,339.99
  5. Step 5: Solve for x
    x = 33,123,682,339.99/209,861.66
  6. Step 6: Final answer
    x = 157,835.80

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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.