Finding the Fourth Proportional to 168,218.28, 232,138.30 and 91,737.96
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Solution
The fourth proportional to 168,218.28, 232,138.30 and 91,737.96 is: 126,596.79
Step by Step Solution
- Step 1: Write the proportion equation
168,218.28 : 232,138.30 = 91,737.96 : x - Step 2: Convert to fraction form
168,218.28/232,138.30 = 91,737.96/x - Step 3: Cross multiply
168,218.28x = 232,138.30 × 91,737.96 - Step 4: Simplify right side
168,218.28x = 21,295,894,079.87 - Step 5: Solve for x
x = 21,295,894,079.87/168,218.28 - Step 6: Final answer
x = 126,596.79
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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.