Finding the Fourth Proportional to 136,248.36, 187,916.22 and 88,517.09
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Solution
The fourth proportional to 136,248.36, 187,916.22 and 88,517.09 is: 122,084.38
Step by Step Solution
- Step 1: Write the proportion equation
136,248.36 : 187,916.22 = 88,517.09 : x - Step 2: Convert to fraction form
136,248.36/187,916.22 = 88,517.09/x - Step 3: Cross multiply
136,248.36x = 187,916.22 × 88,517.09 - Step 4: Simplify right side
136,248.36x = 16,633,796,018.62 - Step 5: Solve for x
x = 16,633,796,018.62/136,248.36 - Step 6: Final answer
x = 122,084.38
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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.