Finding the Fourth Proportional to 121,174.68, 181,762.12 and 57,979.96
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Solution
The fourth proportional to 121,174.68, 181,762.12 and 57,979.96 is: 86,969.99
Step by Step Solution
- Step 1: Write the proportion equation
121,174.68 : 181,762.12 = 57,979.96 : x - Step 2: Convert to fraction form
121,174.68/181,762.12 = 57,979.96/x - Step 3: Cross multiply
121,174.68x = 181,762.12 × 57,979.96 - Step 4: Simplify right side
121,174.68x = 10,538,560,447.12 - Step 5: Solve for x
x = 10,538,560,447.12/121,174.68 - Step 6: Final answer
x = 86,969.99
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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.