Home / 104,286.87-143,776.67-82,847.75

Finding the Fourth Proportional to 104,286.87, 143,776.67 and 82,847.75

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Solution

The fourth proportional to 104,286.87, 143,776.67 and 82,847.75 is: 114,219.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,286.87 : 143,776.67 = 82,847.75 : x
  2. Step 2: Convert to fraction form
    104,286.87/143,776.67 = 82,847.75/x
  3. Step 3: Cross multiply
    104,286.87x = 143,776.67 × 82,847.75
  4. Step 4: Simplify right side
    104,286.87x = 11,911,572,478.87
  5. Step 5: Solve for x
    x = 11,911,572,478.87/104,286.87
  6. Step 6: Final answer
    x = 114,219.29

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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.