Finding the Fourth Proportional to 122,076.60, 168,450.96 and 68,357.40
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Solution
The fourth proportional to 122,076.60, 168,450.96 and 68,357.40 is: 94,324.95
Step by Step Solution
- Step 1: Write the proportion equation
122,076.60 : 168,450.96 = 68,357.40 : x - Step 2: Convert to fraction form
122,076.60/168,450.96 = 68,357.40/x - Step 3: Cross multiply
122,076.60x = 168,450.96 × 68,357.40 - Step 4: Simplify right side
122,076.60x = 11,514,869,653.10 - Step 5: Solve for x
x = 11,514,869,653.10/122,076.60 - Step 6: Final answer
x = 94,324.95
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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.