Finding the Fourth Proportional to 160,734.28, 221,812.94 and 89,112.46
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Solution
The fourth proportional to 160,734.28, 221,812.94 and 89,112.46 is: 122,974.99
Step by Step Solution
- Step 1: Write the proportion equation
160,734.28 : 221,812.94 = 89,112.46 : x - Step 2: Convert to fraction form
160,734.28/221,812.94 = 89,112.46/x - Step 3: Cross multiply
160,734.28x = 221,812.94 × 89,112.46 - Step 4: Simplify right side
160,734.28x = 19,766,296,743.23 - Step 5: Solve for x
x = 19,766,296,743.23/160,734.28 - Step 6: Final answer
x = 122,974.99
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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.