Finding the Fourth Proportional to 160,896.69, 221,250.09 and 139,639.05
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Solution
The fourth proportional to 160,896.69, 221,250.09 and 139,639.05 is: 192,018.57
Step by Step Solution
- Step 1: Write the proportion equation
160,896.69 : 221,250.09 = 139,639.05 : x - Step 2: Convert to fraction form
160,896.69/221,250.09 = 139,639.05/x - Step 3: Cross multiply
160,896.69x = 221,250.09 × 139,639.05 - Step 4: Simplify right side
160,896.69x = 30,895,152,380.01 - Step 5: Solve for x
x = 30,895,152,380.01/160,896.69 - Step 6: Final answer
x = 192,018.57
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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.