Finding the Fourth Proportional to 127,947.36, 176,661.18 and 82,651.80
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Solution
The fourth proportional to 127,947.36, 176,661.18 and 82,651.80 is: 114,120.09
Step by Step Solution
- Step 1: Write the proportion equation
127,947.36 : 176,661.18 = 82,651.80 : x - Step 2: Convert to fraction form
127,947.36/176,661.18 = 82,651.80/x - Step 3: Cross multiply
127,947.36x = 176,661.18 × 82,651.80 - Step 4: Simplify right side
127,947.36x = 14,601,364,517.12 - Step 5: Solve for x
x = 14,601,364,517.12/127,947.36 - Step 6: Final answer
x = 114,120.09
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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.