Finding the Fourth Proportional to 126,035.49, 173,812.11 and 91,990.08
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Solution
The fourth proportional to 126,035.49, 173,812.11 and 91,990.08 is: 126,861.01
Step by Step Solution
- Step 1: Write the proportion equation
126,035.49 : 173,812.11 = 91,990.08 : x - Step 2: Convert to fraction form
126,035.49/173,812.11 = 91,990.08/x - Step 3: Cross multiply
126,035.49x = 173,812.11 × 91,990.08 - Step 4: Simplify right side
126,035.49x = 15,988,989,903.87 - Step 5: Solve for x
x = 15,988,989,903.87/126,035.49 - Step 6: Final answer
x = 126,861.01
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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.