Finding the Fourth Proportional to 126,771.84, 174,640.08 and 106,629.12
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Solution
The fourth proportional to 126,771.84, 174,640.08 and 106,629.12 is: 146,891.60
Step by Step Solution
- Step 1: Write the proportion equation
126,771.84 : 174,640.08 = 106,629.12 : x - Step 2: Convert to fraction form
126,771.84/174,640.08 = 106,629.12/x - Step 3: Cross multiply
126,771.84x = 174,640.08 × 106,629.12 - Step 4: Simplify right side
126,771.84x = 18,621,718,047.13 - Step 5: Solve for x
x = 18,621,718,047.13/126,771.84 - Step 6: Final answer
x = 146,891.60
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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.