Finding the Fourth Proportional to 147,022.75, 202,891.40 and 79,954.75
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Solution
The fourth proportional to 147,022.75, 202,891.40 and 79,954.75 is: 110,337.56
Step by Step Solution
- Step 1: Write the proportion equation
147,022.75 : 202,891.40 = 79,954.75 : x - Step 2: Convert to fraction form
147,022.75/202,891.40 = 79,954.75/x - Step 3: Cross multiply
147,022.75x = 202,891.40 × 79,954.75 - Step 4: Simplify right side
147,022.75x = 16,222,131,164.15 - Step 5: Solve for x
x = 16,222,131,164.15/147,022.75 - Step 6: Final answer
x = 110,337.56
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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.