Finding the Fourth Proportional to 193,126.75, 266,456.23 and 121,578.19
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Solution
The fourth proportional to 193,126.75, 266,456.23 and 121,578.19 is: 167,740.96
Step by Step Solution
- Step 1: Write the proportion equation
193,126.75 : 266,456.23 = 121,578.19 : x - Step 2: Convert to fraction form
193,126.75/266,456.23 = 121,578.19/x - Step 3: Cross multiply
193,126.75x = 266,456.23 × 121,578.19 - Step 4: Simplify right side
193,126.75x = 32,395,266,157.62 - Step 5: Solve for x
x = 32,395,266,157.62/193,126.75 - Step 6: Final answer
x = 167,740.96
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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.