Finding the Fourth Proportional to 145,912.91, 201,313.49 and 115,188.60
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Solution
The fourth proportional to 145,912.91, 201,313.49 and 115,188.60 is: 158,923.69
Step by Step Solution
- Step 1: Write the proportion equation
145,912.91 : 201,313.49 = 115,188.60 : x - Step 2: Convert to fraction form
145,912.91/201,313.49 = 115,188.60/x - Step 3: Cross multiply
145,912.91x = 201,313.49 × 115,188.60 - Step 4: Simplify right side
145,912.91x = 23,189,018,355.62 - Step 5: Solve for x
x = 23,189,018,355.62/145,912.91 - Step 6: Final answer
x = 158,923.69
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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.