Finding the Fourth Proportional to 198,035.93, 273,439.26 and 121,659.68
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Solution
The fourth proportional to 198,035.93, 273,439.26 and 121,659.68 is: 167,982.31
Step by Step Solution
- Step 1: Write the proportion equation
198,035.93 : 273,439.26 = 121,659.68 : x - Step 2: Convert to fraction form
198,035.93/273,439.26 = 121,659.68/x - Step 3: Cross multiply
198,035.93x = 273,439.26 × 121,659.68 - Step 4: Simplify right side
198,035.93x = 33,266,533,554.64 - Step 5: Solve for x
x = 33,266,533,554.64/198,035.93 - Step 6: Final answer
x = 167,982.31
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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.