Home / 120,786.46-181,004.69-68,083.78

Finding the Fourth Proportional to 120,786.46, 181,004.69 and 68,083.78

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Solution

The fourth proportional to 120,786.46, 181,004.69 and 68,083.78 is: 102,027.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,786.46 : 181,004.69 = 68,083.78 : x
  2. Step 2: Convert to fraction form
    120,786.46/181,004.69 = 68,083.78/x
  3. Step 3: Cross multiply
    120,786.46x = 181,004.69 × 68,083.78
  4. Step 4: Simplify right side
    120,786.46x = 12,323,483,492.93
  5. Step 5: Solve for x
    x = 12,323,483,492.93/120,786.46
  6. Step 6: Final answer
    x = 102,027.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.