Finding the Fourth Proportional to 132,395.36, 198,481.26 and 57,458.84
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Solution
The fourth proportional to 132,395.36, 198,481.26 and 57,458.84 is: 86,139.75
Step by Step Solution
- Step 1: Write the proportion equation
132,395.36 : 198,481.26 = 57,458.84 : x - Step 2: Convert to fraction form
132,395.36/198,481.26 = 57,458.84/x - Step 3: Cross multiply
132,395.36x = 198,481.26 × 57,458.84 - Step 4: Simplify right side
132,395.36x = 11,404,502,961.34 - Step 5: Solve for x
x = 11,404,502,961.34/132,395.36 - Step 6: Final answer
x = 86,139.75
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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.