Finding the Fourth Proportional to 102,824.20, 154,236.30 and 91,937.80
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Solution
The fourth proportional to 102,824.20, 154,236.30 and 91,937.80 is: 137,906.70
Step by Step Solution
- Step 1: Write the proportion equation
102,824.20 : 154,236.30 = 91,937.80 : x - Step 2: Convert to fraction form
102,824.20/154,236.30 = 91,937.80/x - Step 3: Cross multiply
102,824.20x = 154,236.30 × 91,937.80 - Step 4: Simplify right side
102,824.20x = 14,180,146,102.14 - Step 5: Solve for x
x = 14,180,146,102.14/102,824.20 - Step 6: Final answer
x = 137,906.70
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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.