Finding the Fourth Proportional to 99,183.73, 136,915.44 and 66,961.99
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Solution
The fourth proportional to 99,183.73, 136,915.44 and 66,961.99 is: 92,435.83
Step by Step Solution
- Step 1: Write the proportion equation
99,183.73 : 136,915.44 = 66,961.99 : x - Step 2: Convert to fraction form
99,183.73/136,915.44 = 66,961.99/x - Step 3: Cross multiply
99,183.73x = 136,915.44 × 66,961.99 - Step 4: Simplify right side
99,183.73x = 9,168,129,981.84 - Step 5: Solve for x
x = 9,168,129,981.84/99,183.73 - Step 6: Final answer
x = 92,435.83
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1.5x scale
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.