Finding the Fourth Proportional to 109,664.97, 151,472.60 and 79,402.38
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Solution
The fourth proportional to 109,664.97, 151,472.60 and 79,402.38 is: 109,672.99
Step by Step Solution
- Step 1: Write the proportion equation
109,664.97 : 151,472.60 = 79,402.38 : x - Step 2: Convert to fraction form
109,664.97/151,472.60 = 79,402.38/x - Step 3: Cross multiply
109,664.97x = 151,472.60 × 79,402.38 - Step 4: Simplify right side
109,664.97x = 12,027,284,944.79 - Step 5: Solve for x
x = 12,027,284,944.79/109,664.97 - Step 6: Final answer
x = 109,672.99
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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.