Finding the Fourth Proportional to 151,736.93, 209,365.70 and 87,193.70
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Solution
The fourth proportional to 151,736.93, 209,365.70 and 87,193.70 is: 120,309.34
Step by Step Solution
- Step 1: Write the proportion equation
151,736.93 : 209,365.70 = 87,193.70 : x - Step 2: Convert to fraction form
151,736.93/209,365.70 = 87,193.70/x - Step 3: Cross multiply
151,736.93x = 209,365.70 × 87,193.70 - Step 4: Simplify right side
151,736.93x = 18,255,370,036.09 - Step 5: Solve for x
x = 18,255,370,036.09/151,736.93 - Step 6: Final answer
x = 120,309.34
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1.5x scale
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.