Finding the Fourth Proportional to 126,670.26, 174,728.80 and 83,650.14
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Solution
The fourth proportional to 126,670.26, 174,728.80 and 83,650.14 is: 115,386.90
Step by Step Solution
- Step 1: Write the proportion equation
126,670.26 : 174,728.80 = 83,650.14 : x - Step 2: Convert to fraction form
126,670.26/174,728.80 = 83,650.14/x - Step 3: Cross multiply
126,670.26x = 174,728.80 × 83,650.14 - Step 4: Simplify right side
126,670.26x = 14,616,088,582.03 - Step 5: Solve for x
x = 14,616,088,582.03/126,670.26 - Step 6: Final answer
x = 115,386.90
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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.