Finding the Fourth Proportional to 115,943.70, 173,915.55 and 92,615.70
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Solution
The fourth proportional to 115,943.70, 173,915.55 and 92,615.70 is: 138,923.55
Step by Step Solution
- Step 1: Write the proportion equation
115,943.70 : 173,915.55 = 92,615.70 : x - Step 2: Convert to fraction form
115,943.70/173,915.55 = 92,615.70/x - Step 3: Cross multiply
115,943.70x = 173,915.55 × 92,615.70 - Step 4: Simplify right side
115,943.70x = 16,107,310,404.14 - Step 5: Solve for x
x = 16,107,310,404.14/115,943.70 - Step 6: Final answer
x = 138,923.55
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1.5x scale
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.