Finding the Fourth Proportional to 121,476.48, 167,629.88 and 67,764.92
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Solution
The fourth proportional to 121,476.48, 167,629.88 and 67,764.92 is: 93,511.32
Step by Step Solution
- Step 1: Write the proportion equation
121,476.48 : 167,629.88 = 67,764.92 : x - Step 2: Convert to fraction form
121,476.48/167,629.88 = 67,764.92/x - Step 3: Cross multiply
121,476.48x = 167,629.88 × 67,764.92 - Step 4: Simplify right side
121,476.48x = 11,359,425,407.81 - Step 5: Solve for x
x = 11,359,425,407.81/121,476.48 - Step 6: Final answer
x = 93,511.32
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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.