Finding the Fourth Proportional to 125,845.40, 188,330.70 and 115,347.80
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Solution
The fourth proportional to 125,845.40, 188,330.70 and 115,347.80 is: 172,620.79
Step by Step Solution
- Step 1: Write the proportion equation
125,845.40 : 188,330.70 = 115,347.80 : x - Step 2: Convert to fraction form
125,845.40/188,330.70 = 115,347.80/x - Step 3: Cross multiply
125,845.40x = 188,330.70 × 115,347.80 - Step 4: Simplify right side
125,845.40x = 21,723,531,917.46 - Step 5: Solve for x
x = 21,723,531,917.46/125,845.40 - Step 6: Final answer
x = 172,620.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.