Finding the Fourth Proportional to 122,380.36, 168,878.10 and 68,660.44
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Solution
The fourth proportional to 122,380.36, 168,878.10 and 68,660.44 is: 94,747.59
Step by Step Solution
- Step 1: Write the proportion equation
122,380.36 : 168,878.10 = 68,660.44 : x - Step 2: Convert to fraction form
122,380.36/168,878.10 = 68,660.44/x - Step 3: Cross multiply
122,380.36x = 168,878.10 × 68,660.44 - Step 4: Simplify right side
122,380.36x = 11,595,244,652.36 - Step 5: Solve for x
x = 11,595,244,652.36/122,380.36 - Step 6: Final answer
x = 94,747.59
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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.