Finding the Fourth Proportional to 127,747.76, 175,015.19 and 122,959.31
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Solution
The fourth proportional to 127,747.76, 175,015.19 and 122,959.31 is: 168,454.98
Step by Step Solution
- Step 1: Write the proportion equation
127,747.76 : 175,015.19 = 122,959.31 : x - Step 2: Convert to fraction form
127,747.76/175,015.19 = 122,959.31/x - Step 3: Cross multiply
127,747.76x = 175,015.19 × 122,959.31 - Step 4: Simplify right side
127,747.76x = 21,519,745,512.05 - Step 5: Solve for x
x = 21,519,745,512.05/127,747.76 - Step 6: Final answer
x = 168,454.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.