Finding the Fourth Proportional to 151,944.75, 209,683.76 and 84,876.75
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Solution
The fourth proportional to 151,944.75, 209,683.76 and 84,876.75 is: 117,129.92
Step by Step Solution
- Step 1: Write the proportion equation
151,944.75 : 209,683.76 = 84,876.75 : x - Step 2: Convert to fraction form
151,944.75/209,683.76 = 84,876.75/x - Step 3: Cross multiply
151,944.75x = 209,683.76 × 84,876.75 - Step 4: Simplify right side
151,944.75x = 17,797,275,652.20 - Step 5: Solve for x
x = 17,797,275,652.20/151,944.75 - Step 6: Final answer
x = 117,129.92
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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.