Finding the Fourth Proportional to 136,707.92, 188,634.28 and 91,313.08
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Solution
The fourth proportional to 136,707.92, 188,634.28 and 91,313.08 is: 125,996.92
Step by Step Solution
- Step 1: Write the proportion equation
136,707.92 : 188,634.28 = 91,313.08 : x - Step 2: Convert to fraction form
136,707.92/188,634.28 = 91,313.08/x - Step 3: Cross multiply
136,707.92x = 188,634.28 × 91,313.08 - Step 4: Simplify right side
136,707.92x = 17,224,777,100.38 - Step 5: Solve for x
x = 17,224,777,100.38/136,707.92 - Step 6: Final answer
x = 125,996.92
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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.