Finding the Fourth Proportional to 112,034.75, 154,611.20 and 61,736.99
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Solution
The fourth proportional to 112,034.75, 154,611.20 and 61,736.99 is: 85,198.83
Step by Step Solution
- Step 1: Write the proportion equation
112,034.75 : 154,611.20 = 61,736.99 : x - Step 2: Convert to fraction form
112,034.75/154,611.20 = 61,736.99/x - Step 3: Cross multiply
112,034.75x = 154,611.20 × 61,736.99 - Step 4: Simplify right side
112,034.75x = 9,545,230,108.29 - Step 5: Solve for x
x = 9,545,230,108.29/112,034.75 - Step 6: Final answer
x = 85,198.83
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1.5x scale
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.