Finding the Fourth Proportional to 116,121.70, 174,344.55 and 74,260.90
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Solution
The fourth proportional to 116,121.70, 174,344.55 and 74,260.90 is: 111,494.95
Step by Step Solution
- Step 1: Write the proportion equation
116,121.70 : 174,344.55 = 74,260.90 : x - Step 2: Convert to fraction form
116,121.70/174,344.55 = 74,260.90/x - Step 3: Cross multiply
116,121.70x = 174,344.55 × 74,260.90 - Step 4: Simplify right side
116,121.70x = 12,946,983,193.10 - Step 5: Solve for x
x = 12,946,983,193.10/116,121.70 - Step 6: Final answer
x = 111,494.95
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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.