Finding the Fourth Proportional to 189,114.81, 260,979.67 and 104,231.87
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Solution
The fourth proportional to 189,114.81, 260,979.67 and 104,231.87 is: 143,840.66
Step by Step Solution
- Step 1: Write the proportion equation
189,114.81 : 260,979.67 = 104,231.87 : x - Step 2: Convert to fraction form
189,114.81/260,979.67 = 104,231.87/x - Step 3: Cross multiply
189,114.81x = 260,979.67 × 104,231.87 - Step 4: Simplify right side
189,114.81x = 27,202,399,036.08 - Step 5: Solve for x
x = 27,202,399,036.08/189,114.81 - Step 6: Final answer
x = 143,840.66
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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.