Finding the Fourth Proportional to 112,033.75, 154,609.82 and 61,735.99
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Solution
The fourth proportional to 112,033.75, 154,609.82 and 61,735.99 is: 85,197.45
Step by Step Solution
- Step 1: Write the proportion equation
112,033.75 : 154,609.82 = 61,735.99 : x - Step 2: Convert to fraction form
112,033.75/154,609.82 = 61,735.99/x - Step 3: Cross multiply
112,033.75x = 154,609.82 × 61,735.99 - Step 4: Simplify right side
112,033.75x = 9,544,990,301.42 - Step 5: Solve for x
x = 9,544,990,301.42/112,033.75 - Step 6: Final answer
x = 85,197.45
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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.