Finding the Fourth Proportional to 102,839.28, 154,276.20 and 32,740.08
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Solution
The fourth proportional to 102,839.28, 154,276.20 and 32,740.08 is: 49,115.62
Step by Step Solution
- Step 1: Write the proportion equation
102,839.28 : 154,276.20 = 32,740.08 : x - Step 2: Convert to fraction form
102,839.28/154,276.20 = 32,740.08/x - Step 3: Cross multiply
102,839.28x = 154,276.20 × 32,740.08 - Step 4: Simplify right side
102,839.28x = 5,051,015,130.10 - Step 5: Solve for x
x = 5,051,015,130.10/102,839.28 - Step 6: Final answer
x = 49,115.62
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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.