Finding the Fourth Proportional to 107,477.99, 161,218.49 and 40,921.75
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Solution
The fourth proportional to 107,477.99, 161,218.49 and 40,921.75 is: 61,383.20
Step by Step Solution
- Step 1: Write the proportion equation
107,477.99 : 161,218.49 = 40,921.75 : x - Step 2: Convert to fraction form
107,477.99/161,218.49 = 40,921.75/x - Step 3: Cross multiply
107,477.99x = 161,218.49 × 40,921.75 - Step 4: Simplify right side
107,477.99x = 6,597,342,743.16 - Step 5: Solve for x
x = 6,597,342,743.16/107,477.99 - Step 6: Final answer
x = 61,383.20
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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.