Finding the Fourth Proportional to 116,620.24, 160,959.84 and 74,170.56
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Solution
The fourth proportional to 116,620.24, 160,959.84 and 74,170.56 is: 102,370.58
Step by Step Solution
- Step 1: Write the proportion equation
116,620.24 : 160,959.84 = 74,170.56 : x - Step 2: Convert to fraction form
116,620.24/160,959.84 = 74,170.56/x - Step 3: Cross multiply
116,620.24x = 160,959.84 × 74,170.56 - Step 4: Simplify right side
116,620.24x = 11,938,481,470.31 - Step 5: Solve for x
x = 11,938,481,470.31/116,620.24 - Step 6: Final answer
x = 102,370.58
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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.