Finding the Fourth Proportional to 166,626.12, 229,943.09 and 90,144.99
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Solution
The fourth proportional to 166,626.12, 229,943.09 and 90,144.99 is: 124,399.57
Step by Step Solution
- Step 1: Write the proportion equation
166,626.12 : 229,943.09 = 90,144.99 : x - Step 2: Convert to fraction form
166,626.12/229,943.09 = 90,144.99/x - Step 3: Cross multiply
166,626.12x = 229,943.09 × 90,144.99 - Step 4: Simplify right side
166,626.12x = 20,728,217,548.62 - Step 5: Solve for x
x = 20,728,217,548.62/166,626.12 - Step 6: Final answer
x = 124,399.57
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1.5x scale
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.