Finding the Fourth Proportional to 144,290.99, 199,117.74 and 80,629.31
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Solution
The fourth proportional to 144,290.99, 199,117.74 and 80,629.31 is: 111,266.30
Step by Step Solution
- Step 1: Write the proportion equation
144,290.99 : 199,117.74 = 80,629.31 : x - Step 2: Convert to fraction form
144,290.99/199,117.74 = 80,629.31/x - Step 3: Cross multiply
144,290.99x = 199,117.74 × 80,629.31 - Step 4: Simplify right side
144,290.99x = 16,054,724,586.22 - Step 5: Solve for x
x = 16,054,724,586.22/144,290.99 - Step 6: Final answer
x = 111,266.30
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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.