Finding the Fourth Proportional to 126,036.49, 173,813.49 and 91,991.08
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Solution
The fourth proportional to 126,036.49, 173,813.49 and 91,991.08 is: 126,862.39
Step by Step Solution
- Step 1: Write the proportion equation
126,036.49 : 173,813.49 = 91,991.08 : x - Step 2: Convert to fraction form
126,036.49/173,813.49 = 91,991.08/x - Step 3: Cross multiply
126,036.49x = 173,813.49 × 91,991.08 - Step 4: Simplify right side
126,036.49x = 15,989,290,663.67 - Step 5: Solve for x
x = 15,989,290,663.67/126,036.49 - Step 6: Final answer
x = 126,862.39
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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.