Home / 104,004.44-143,579.24-72,118

Finding the Fourth Proportional to 104,004.44, 143,579.24 and 72,118

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Solution

The fourth proportional to 104,004.44, 143,579.24 and 72,118 is: 99,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,004.44 : 143,579.24 = 72,118 : x
  2. Step 2: Convert to fraction form
    104,004.44/143,579.24 = 72,118/x
  3. Step 3: Cross multiply
    104,004.44x = 143,579.24 × 72,118
  4. Step 4: Simplify right side
    104,004.44x = 10,354,647,630.32
  5. Step 5: Solve for x
    x = 10,354,647,630.32/104,004.44
  6. Step 6: Final answer
    x = 99,559.67

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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.