Finding the Fourth Proportional to 138,523.79, 207,797.48 and 43,728.62
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Solution
The fourth proportional to 138,523.79, 207,797.48 and 43,728.62 is: 65,596.64
Step by Step Solution
- Step 1: Write the proportion equation
138,523.79 : 207,797.48 = 43,728.62 : x - Step 2: Convert to fraction form
138,523.79/207,797.48 = 43,728.62/x - Step 3: Cross multiply
138,523.79x = 207,797.48 × 43,728.62 - Step 4: Simplify right side
138,523.79x = 9,086,695,782.25 - Step 5: Solve for x
x = 9,086,695,782.25/138,523.79 - Step 6: Final answer
x = 65,596.64
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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.