Finding the Fourth Proportional to 105,915.48, 158,873.10 and 27,029.70
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Solution
The fourth proportional to 105,915.48, 158,873.10 and 27,029.70 is: 40,544.52
Step by Step Solution
- Step 1: Write the proportion equation
105,915.48 : 158,873.10 = 27,029.70 : x - Step 2: Convert to fraction form
105,915.48/158,873.10 = 27,029.70/x - Step 3: Cross multiply
105,915.48x = 158,873.10 × 27,029.70 - Step 4: Simplify right side
105,915.48x = 4,294,292,231.07 - Step 5: Solve for x
x = 4,294,292,231.07/105,915.48 - Step 6: Final answer
x = 40,544.52
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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.