Finding the Fourth Proportional to 163,445.14, 225,542.14 and 91,837.09
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Solution
The fourth proportional to 163,445.14, 225,542.14 and 91,837.09 is: 126,728.36
Step by Step Solution
- Step 1: Write the proportion equation
163,445.14 : 225,542.14 = 91,837.09 : x - Step 2: Convert to fraction form
163,445.14/225,542.14 = 91,837.09/x - Step 3: Cross multiply
163,445.14x = 225,542.14 × 91,837.09 - Step 4: Simplify right side
163,445.14x = 20,713,133,809.97 - Step 5: Solve for x
x = 20,713,133,809.97/163,445.14 - Step 6: Final answer
x = 126,728.36
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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.