Home / 209,638.28-289,297.08-114,143.24

Finding the Fourth Proportional to 209,638.28, 289,297.08 and 114,143.24

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Solution

The fourth proportional to 209,638.28, 289,297.08 and 114,143.24 is: 157,515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,638.28 : 289,297.08 = 114,143.24 : x
  2. Step 2: Convert to fraction form
    209,638.28/289,297.08 = 114,143.24/x
  3. Step 3: Cross multiply
    209,638.28x = 289,297.08 × 114,143.24
  4. Step 4: Simplify right side
    209,638.28x = 33,021,306,033.74
  5. Step 5: Solve for x
    x = 33,021,306,033.74/209,638.28
  6. Step 6: Final answer
    x = 157,515.63

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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.