Finding the Fourth Proportional to 121,821.03, 168,114.22 and 68,108.99
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Solution
The fourth proportional to 121,821.03, 168,114.22 and 68,108.99 is: 93,991.07
Step by Step Solution
- Step 1: Write the proportion equation
121,821.03 : 168,114.22 = 68,108.99 : x - Step 2: Convert to fraction form
121,821.03/168,114.22 = 68,108.99/x - Step 3: Cross multiply
121,821.03x = 168,114.22 × 68,108.99 - Step 4: Simplify right side
121,821.03x = 11,450,088,717.99 - Step 5: Solve for x
x = 11,450,088,717.99/121,821.03 - Step 6: Final answer
x = 93,991.07
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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.