Finding the Fourth Proportional to 132,912.60, 199,239.30 and 118,915.80
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Solution
The fourth proportional to 132,912.60, 199,239.30 and 118,915.80 is: 178,257.75
Step by Step Solution
- Step 1: Write the proportion equation
132,912.60 : 199,239.30 = 118,915.80 : x - Step 2: Convert to fraction form
132,912.60/199,239.30 = 118,915.80/x - Step 3: Cross multiply
132,912.60x = 199,239.30 × 118,915.80 - Step 4: Simplify right side
132,912.60x = 23,692,700,750.94 - Step 5: Solve for x
x = 23,692,700,750.94/132,912.60 - Step 6: Final answer
x = 178,257.75
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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.