Finding the Fourth Proportional to 154,561.26, 213,085.12 and 132,141.09
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Solution
The fourth proportional to 154,561.26, 213,085.12 and 132,141.09 is: 182,175.66
Step by Step Solution
- Step 1: Write the proportion equation
154,561.26 : 213,085.12 = 132,141.09 : x - Step 2: Convert to fraction form
154,561.26/213,085.12 = 132,141.09/x - Step 3: Cross multiply
154,561.26x = 213,085.12 × 132,141.09 - Step 4: Simplify right side
154,561.26x = 28,157,300,019.58 - Step 5: Solve for x
x = 28,157,300,019.58/154,561.26 - Step 6: Final answer
x = 182,175.66
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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.