Home / 104,288.87-143,779.42-82,849.75

Finding the Fourth Proportional to 104,288.87, 143,779.42 and 82,849.75

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Solution

The fourth proportional to 104,288.87, 143,779.42 and 82,849.75 is: 114,222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,288.87 : 143,779.42 = 82,849.75 : x
  2. Step 2: Convert to fraction form
    104,288.87/143,779.42 = 82,849.75/x
  3. Step 3: Cross multiply
    104,288.87x = 143,779.42 × 82,849.75
  4. Step 4: Simplify right side
    104,288.87x = 11,912,089,002.15
  5. Step 5: Solve for x
    x = 11,912,089,002.15/104,288.87
  6. Step 6: Final answer
    x = 114,222.05

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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.