Finding the Fourth Proportional to 86,198.49, 129,297.76 and 23,868.99
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Solution
The fourth proportional to 86,198.49, 129,297.76 and 23,868.99 is: 35,803.49
Step by Step Solution
- Step 1: Write the proportion equation
86,198.49 : 129,297.76 = 23,868.99 : x - Step 2: Convert to fraction form
86,198.49/129,297.76 = 23,868.99/x - Step 3: Cross multiply
86,198.49x = 129,297.76 × 23,868.99 - Step 4: Simplify right side
86,198.49x = 3,086,206,940.46 - Step 5: Solve for x
x = 3,086,206,940.46/86,198.49 - Step 6: Final answer
x = 35,803.49
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.