Finding the Fourth Proportional to 163,368.15, 225,453.12 and 91,749.72
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Solution
The fourth proportional to 163,368.15, 225,453.12 and 91,749.72 is: 126,617.46
Step by Step Solution
- Step 1: Write the proportion equation
163,368.15 : 225,453.12 = 91,749.72 : x - Step 2: Convert to fraction form
163,368.15/225,453.12 = 91,749.72/x - Step 3: Cross multiply
163,368.15x = 225,453.12 × 91,749.72 - Step 4: Simplify right side
163,368.15x = 20,685,260,633.13 - Step 5: Solve for x
x = 20,685,260,633.13/163,368.15 - Step 6: Final answer
x = 126,617.46
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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.