Finding the Fourth Proportional to 160,887.09, 221,236.87 and 139,629.45
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Solution
The fourth proportional to 160,887.09, 221,236.87 and 139,629.45 is: 192,005.35
Step by Step Solution
- Step 1: Write the proportion equation
160,887.09 : 221,236.87 = 139,629.45 : x - Step 2: Convert to fraction form
160,887.09/221,236.87 = 139,629.45/x - Step 3: Cross multiply
160,887.09x = 221,236.87 × 139,629.45 - Step 4: Simplify right side
160,887.09x = 30,891,183,220.19 - Step 5: Solve for x
x = 30,891,183,220.19/160,887.09 - Step 6: Final answer
x = 192,005.35
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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.