Finding the Fourth Proportional to 121,660.62, 182,354.67 and 79,621.62
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Solution
The fourth proportional to 121,660.62, 182,354.67 and 79,621.62 is: 119,343.25
Step by Step Solution
- Step 1: Write the proportion equation
121,660.62 : 182,354.67 = 79,621.62 : x - Step 2: Convert to fraction form
121,660.62/182,354.67 = 79,621.62/x - Step 3: Cross multiply
121,660.62x = 182,354.67 × 79,621.62 - Step 4: Simplify right side
121,660.62x = 14,519,374,239.97 - Step 5: Solve for x
x = 14,519,374,239.97/121,660.62 - Step 6: Final answer
x = 119,343.25
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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.