Finding the Fourth Proportional to 106,213.62, 159,418.98 and 53,660.01
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Solution
The fourth proportional to 106,213.62, 159,418.98 and 53,660.01 is: 80,539.80
Step by Step Solution
- Step 1: Write the proportion equation
106,213.62 : 159,418.98 = 53,660.01 : x - Step 2: Convert to fraction form
106,213.62/159,418.98 = 53,660.01/x - Step 3: Cross multiply
106,213.62x = 159,418.98 × 53,660.01 - Step 4: Simplify right side
106,213.62x = 8,554,424,060.99 - Step 5: Solve for x
x = 8,554,424,060.99/106,213.62 - Step 6: Final answer
x = 80,539.80
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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.