Finding the Fourth Proportional to 188,957.76, 260,761.97 and 102,917.08
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Solution
The fourth proportional to 188,957.76, 260,761.97 and 102,917.08 is: 142,025.71
Step by Step Solution
- Step 1: Write the proportion equation
188,957.76 : 260,761.97 = 102,917.08 : x - Step 2: Convert to fraction form
188,957.76/260,761.97 = 102,917.08/x - Step 3: Cross multiply
188,957.76x = 260,761.97 × 102,917.08 - Step 4: Simplify right side
188,957.76x = 26,836,860,527.45 - Step 5: Solve for x
x = 26,836,860,527.45/188,957.76 - Step 6: Final answer
x = 142,025.71
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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.