Home / 209,865.42-289,606.92-114,370.20

Finding the Fourth Proportional to 209,865.42, 289,606.92 and 114,370.20

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Solution

The fourth proportional to 209,865.42, 289,606.92 and 114,370.20 is: 157,826.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,865.42 : 289,606.92 = 114,370.20 : x
  2. Step 2: Convert to fraction form
    209,865.42/289,606.92 = 114,370.20/x
  3. Step 3: Cross multiply
    209,865.42x = 289,606.92 × 114,370.20
  4. Step 4: Simplify right side
    209,865.42x = 33,122,401,361.78
  5. Step 5: Solve for x
    x = 33,122,401,361.78/209,865.42
  6. Step 6: Final answer
    x = 157,826.87

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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.