Finding the Fourth Proportional to 132,393.36, 198,478.26 and 57,456.84
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Solution
The fourth proportional to 132,393.36, 198,478.26 and 57,456.84 is: 86,136.75
Step by Step Solution
- Step 1: Write the proportion equation
132,393.36 : 198,478.26 = 57,456.84 : x - Step 2: Convert to fraction form
132,393.36/198,478.26 = 57,456.84/x - Step 3: Cross multiply
132,393.36x = 198,478.26 × 57,456.84 - Step 4: Simplify right side
132,393.36x = 11,403,933,628.30 - Step 5: Solve for x
x = 11,403,933,628.30/132,393.36 - Step 6: Final answer
x = 86,136.75
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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.