Finding the Fourth Proportional to 141,481.06, 195,133.26 and 87,735.70
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Solution
The fourth proportional to 141,481.06, 195,133.26 and 87,735.70 is: 121,006.68
Step by Step Solution
- Step 1: Write the proportion equation
141,481.06 : 195,133.26 = 87,735.70 : x - Step 2: Convert to fraction form
141,481.06/195,133.26 = 87,735.70/x - Step 3: Cross multiply
141,481.06x = 195,133.26 × 87,735.70 - Step 4: Simplify right side
141,481.06x = 17,120,153,159.38 - Step 5: Solve for x
x = 17,120,153,159.38/141,481.06 - Step 6: Final answer
x = 121,006.68
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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.