Finding the Fourth Proportional to 190,640.62, 263,084.16 and 105,757.75
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Solution
The fourth proportional to 190,640.62, 263,084.16 and 105,757.75 is: 145,945.75
Step by Step Solution
- Step 1: Write the proportion equation
190,640.62 : 263,084.16 = 105,757.75 : x - Step 2: Convert to fraction form
190,640.62/263,084.16 = 105,757.75/x - Step 3: Cross multiply
190,640.62x = 263,084.16 × 105,757.75 - Step 4: Simplify right side
190,640.62x = 27,823,188,822.24 - Step 5: Solve for x
x = 27,823,188,822.24/190,640.62 - Step 6: Final answer
x = 145,945.75
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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.