Finding the Fourth Proportional to 84,194.97, 126,112.89 and 68,115.51
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Solution
The fourth proportional to 84,194.97, 126,112.89 and 68,115.51 is: 102,027.99
Step by Step Solution
- Step 1: Write the proportion equation
84,194.97 : 126,112.89 = 68,115.51 : x - Step 2: Convert to fraction form
84,194.97/126,112.89 = 68,115.51/x - Step 3: Cross multiply
84,194.97x = 126,112.89 × 68,115.51 - Step 4: Simplify right side
84,194.97x = 8,590,243,819.92 - Step 5: Solve for x
x = 8,590,243,819.92/84,194.97 - Step 6: Final answer
x = 102,027.99
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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.