Finding the Fourth Proportional to 136,436.49, 186,918.67 and 131,322.95
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Solution
The fourth proportional to 136,436.49, 186,918.67 and 131,322.95 is: 179,913.09
Step by Step Solution
- Step 1: Write the proportion equation
136,436.49 : 186,918.67 = 131,322.95 : x - Step 2: Convert to fraction form
136,436.49/186,918.67 = 131,322.95/x - Step 3: Cross multiply
136,436.49x = 186,918.67 × 131,322.95 - Step 4: Simplify right side
136,436.49x = 24,546,710,219.88 - Step 5: Solve for x
x = 24,546,710,219.88/136,436.49 - Step 6: Final answer
x = 179,913.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.