Finding the Fourth Proportional to 163,057.36, 225,015.64 and 91,435.81
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Solution
The fourth proportional to 163,057.36, 225,015.64 and 91,435.81 is: 126,179.45
Step by Step Solution
- Step 1: Write the proportion equation
163,057.36 : 225,015.64 = 91,435.81 : x - Step 2: Convert to fraction form
163,057.36/225,015.64 = 91,435.81/x - Step 3: Cross multiply
163,057.36x = 225,015.64 × 91,435.81 - Step 4: Simplify right side
163,057.36x = 20,574,487,306.07 - Step 5: Solve for x
x = 20,574,487,306.07/163,057.36 - Step 6: Final answer
x = 126,179.45
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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.