Finding the Fourth Proportional to 160,409.47, 221,414.42 and 92,471.88
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Solution
The fourth proportional to 160,409.47, 221,414.42 and 92,471.88 is: 127,639.65
Step by Step Solution
- Step 1: Write the proportion equation
160,409.47 : 221,414.42 = 92,471.88 : x - Step 2: Convert to fraction form
160,409.47/221,414.42 = 92,471.88/x - Step 3: Cross multiply
160,409.47x = 221,414.42 × 92,471.88 - Step 4: Simplify right side
160,409.47x = 20,474,607,214.15 - Step 5: Solve for x
x = 20,474,607,214.15/160,409.47 - Step 6: Final answer
x = 127,639.65
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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.