Finding the Fourth Proportional to 84,660.99, 126,975.07 and 80,446.15
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Solution
The fourth proportional to 84,660.99, 126,975.07 and 80,446.15 is: 120,653.63
Step by Step Solution
- Step 1: Write the proportion equation
84,660.99 : 126,975.07 = 80,446.15 : x - Step 2: Convert to fraction form
84,660.99/126,975.07 = 80,446.15/x - Step 3: Cross multiply
84,660.99x = 126,975.07 × 80,446.15 - Step 4: Simplify right side
84,660.99x = 10,214,655,527.48 - Step 5: Solve for x
x = 10,214,655,527.48/84,660.99 - Step 6: Final answer
x = 120,653.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.