Home / 83,457.22-115,103.94-73,364.20

Finding the Fourth Proportional to 83,457.22, 115,103.94 and 73,364.20

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Solution

The fourth proportional to 83,457.22, 115,103.94 and 73,364.20 is: 101,183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,457.22 : 115,103.94 = 73,364.20 : x
  2. Step 2: Convert to fraction form
    83,457.22/115,103.94 = 73,364.20/x
  3. Step 3: Cross multiply
    83,457.22x = 115,103.94 × 73,364.20
  4. Step 4: Simplify right side
    83,457.22x = 8,444,508,474.95
  5. Step 5: Solve for x
    x = 8,444,508,474.95/83,457.22
  6. Step 6: Final answer
    x = 101,183.68

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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.