Finding the Fourth Proportional to 137,902.54, 190,326.09 and 84,218.44
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Solution
The fourth proportional to 137,902.54, 190,326.09 and 84,218.44 is: 116,234.02
Step by Step Solution
- Step 1: Write the proportion equation
137,902.54 : 190,326.09 = 84,218.44 : x - Step 2: Convert to fraction form
137,902.54/190,326.09 = 84,218.44/x - Step 3: Cross multiply
137,902.54x = 190,326.09 × 84,218.44 - Step 4: Simplify right side
137,902.54x = 16,028,966,391.10 - Step 5: Solve for x
x = 16,028,966,391.10/137,902.54 - Step 6: Final answer
x = 116,234.02
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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.