Finding the Fourth Proportional to 117,686.94, 177,170.73 and 107,224.17
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Solution
The fourth proportional to 117,686.94, 177,170.73 and 107,224.17 is: 161,419.65
Step by Step Solution
- Step 1: Write the proportion equation
117,686.94 : 177,170.73 = 107,224.17 : x - Step 2: Convert to fraction form
117,686.94/177,170.73 = 107,224.17/x - Step 3: Cross multiply
117,686.94x = 177,170.73 × 107,224.17 - Step 4: Simplify right side
117,686.94x = 18,996,984,472.54 - Step 5: Solve for x
x = 18,996,984,472.54/117,686.94 - Step 6: Final answer
x = 161,419.65
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.