Finding the Fourth Proportional to 151,341.75, 208,851.62 and 87,716.45
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Solution
The fourth proportional to 151,341.75, 208,851.62 and 87,716.45 is: 121,048.70
Step by Step Solution
- Step 1: Write the proportion equation
151,341.75 : 208,851.62 = 87,716.45 : x - Step 2: Convert to fraction form
151,341.75/208,851.62 = 87,716.45/x - Step 3: Cross multiply
151,341.75x = 208,851.62 × 87,716.45 - Step 4: Simplify right side
151,341.75x = 18,319,722,766.70 - Step 5: Solve for x
x = 18,319,722,766.70/151,341.75 - Step 6: Final answer
x = 121,048.70
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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.