Finding the Fourth Proportional to 116,436.08, 160,672.20 and 68,691.44
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Solution
The fourth proportional to 116,436.08, 160,672.20 and 68,691.44 is: 94,788.53
Step by Step Solution
- Step 1: Write the proportion equation
116,436.08 : 160,672.20 = 68,691.44 : x - Step 2: Convert to fraction form
116,436.08/160,672.20 = 68,691.44/x - Step 3: Cross multiply
116,436.08x = 160,672.20 × 68,691.44 - Step 4: Simplify right side
116,436.08x = 11,036,804,785.97 - Step 5: Solve for x
x = 11,036,804,785.97/116,436.08 - Step 6: Final answer
x = 94,788.53
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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.