Home / 120,785.96-181,003.94-68,083.28

Finding the Fourth Proportional to 120,785.96, 181,003.94 and 68,083.28

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Solution

The fourth proportional to 120,785.96, 181,003.94 and 68,083.28 is: 102,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,785.96 : 181,003.94 = 68,083.28 : x
  2. Step 2: Convert to fraction form
    120,785.96/181,003.94 = 68,083.28/x
  3. Step 3: Cross multiply
    120,785.96x = 181,003.94 × 68,083.28
  4. Step 4: Simplify right side
    120,785.96x = 12,323,341,928.12
  5. Step 5: Solve for x
    x = 12,323,341,928.12/120,785.96
  6. Step 6: Final answer
    x = 102,026.28

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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.