Finding the Fourth Proportional to 106,905.73, 160,247.88 and 87,986.99
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Solution
The fourth proportional to 106,905.73, 160,247.88 and 87,986.99 is: 131,889.36
Step by Step Solution
- Step 1: Write the proportion equation
106,905.73 : 160,247.88 = 87,986.99 : x - Step 2: Convert to fraction form
106,905.73/160,247.88 = 87,986.99/x - Step 3: Cross multiply
106,905.73x = 160,247.88 × 87,986.99 - Step 4: Simplify right side
106,905.73x = 14,099,728,615.08 - Step 5: Solve for x
x = 14,099,728,615.08/106,905.73 - Step 6: Final answer
x = 131,889.36
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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.