Finding the Fourth Proportional to 117,616.37, 162,274.83 and 66,620.99
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Solution
The fourth proportional to 117,616.37, 162,274.83 and 66,620.99 is: 91,916.72
Step by Step Solution
- Step 1: Write the proportion equation
117,616.37 : 162,274.83 = 66,620.99 : x - Step 2: Convert to fraction form
117,616.37/162,274.83 = 66,620.99/x - Step 3: Cross multiply
117,616.37x = 162,274.83 × 66,620.99 - Step 4: Simplify right side
117,616.37x = 10,810,909,982.54 - Step 5: Solve for x
x = 10,810,909,982.54/117,616.37 - Step 6: Final answer
x = 91,916.72
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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.