Finding the Fourth Proportional to 163,430.58, 225,509.64 and 91,796.88
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Solution
The fourth proportional to 163,430.58, 225,509.64 and 91,796.88 is: 126,665.90
Step by Step Solution
- Step 1: Write the proportion equation
163,430.58 : 225,509.64 = 91,796.88 : x - Step 2: Convert to fraction form
163,430.58/225,509.64 = 91,796.88/x - Step 3: Cross multiply
163,430.58x = 225,509.64 × 91,796.88 - Step 4: Simplify right side
163,430.58x = 20,701,081,361.92 - Step 5: Solve for x
x = 20,701,081,361.92/163,430.58 - Step 6: Final answer
x = 126,665.90
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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.