Home / 120,786.96-181,005.44-68,084.28

Finding the Fourth Proportional to 120,786.96, 181,005.44 and 68,084.28

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Solution

The fourth proportional to 120,786.96, 181,005.44 and 68,084.28 is: 102,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,786.96 : 181,005.44 = 68,084.28 : x
  2. Step 2: Convert to fraction form
    120,786.96/181,005.44 = 68,084.28/x
  3. Step 3: Cross multiply
    120,786.96x = 181,005.44 × 68,084.28
  4. Step 4: Simplify right side
    120,786.96x = 12,323,625,058.48
  5. Step 5: Solve for x
    x = 12,323,625,058.48/120,786.96
  6. Step 6: Final answer
    x = 102,027.78

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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.