Finding the Fourth Proportional to 139,883.43, 209,825.16 and 40,043.99
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Solution
The fourth proportional to 139,883.43, 209,825.16 and 40,043.99 is: 60,065.98
Step by Step Solution
- Step 1: Write the proportion equation
139,883.43 : 209,825.16 = 40,043.99 : x - Step 2: Convert to fraction form
139,883.43/209,825.16 = 40,043.99/x - Step 3: Cross multiply
139,883.43x = 209,825.16 × 40,043.99 - Step 4: Simplify right side
139,883.43x = 8,402,235,559.66 - Step 5: Solve for x
x = 8,402,235,559.66/139,883.43 - Step 6: Final answer
x = 60,065.98
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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.