Finding the Fourth Proportional to 151,952.75, 209,694.80 and 84,884.75
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Solution
The fourth proportional to 151,952.75, 209,694.80 and 84,884.75 is: 117,140.96
Step by Step Solution
- Step 1: Write the proportion equation
151,952.75 : 209,694.80 = 84,884.75 : x - Step 2: Convert to fraction form
151,952.75/209,694.80 = 84,884.75/x - Step 3: Cross multiply
151,952.75x = 209,694.80 × 84,884.75 - Step 4: Simplify right side
151,952.75x = 17,799,890,674.30 - Step 5: Solve for x
x = 17,799,890,674.30/151,952.75 - Step 6: Final answer
x = 117,140.96
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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.