Finding the Fourth Proportional to 154,577.10, 213,329.93 and 86,592.99
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Solution
The fourth proportional to 154,577.10, 213,329.93 and 86,592.99 is: 119,505.90
Step by Step Solution
- Step 1: Write the proportion equation
154,577.10 : 213,329.93 = 86,592.99 : x - Step 2: Convert to fraction form
154,577.10/213,329.93 = 86,592.99/x - Step 3: Cross multiply
154,577.10x = 213,329.93 × 86,592.99 - Step 4: Simplify right side
154,577.10x = 18,472,876,062.23 - Step 5: Solve for x
x = 18,472,876,062.23/154,577.10 - Step 6: Final answer
x = 119,505.90
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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.