Finding the Fourth Proportional to 117,371.68, 161,958.03 and 69,615.70
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Solution
The fourth proportional to 117,371.68, 161,958.03 and 69,615.70 is: 96,060.84
Step by Step Solution
- Step 1: Write the proportion equation
117,371.68 : 161,958.03 = 69,615.70 : x - Step 2: Convert to fraction form
117,371.68/161,958.03 = 69,615.70/x - Step 3: Cross multiply
117,371.68x = 161,958.03 × 69,615.70 - Step 4: Simplify right side
117,371.68x = 11,274,821,629.07 - Step 5: Solve for x
x = 11,274,821,629.07/117,371.68 - Step 6: Final answer
x = 96,060.84
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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.