Finding the Fourth Proportional to 103,518.40, 155,310.42 and 36,957.07
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Solution
The fourth proportional to 103,518.40, 155,310.42 and 36,957.07 is: 55,447.32
Step by Step Solution
- Step 1: Write the proportion equation
103,518.40 : 155,310.42 = 36,957.07 : x - Step 2: Convert to fraction form
103,518.40/155,310.42 = 36,957.07/x - Step 3: Cross multiply
103,518.40x = 155,310.42 × 36,957.07 - Step 4: Simplify right side
103,518.40x = 5,739,818,063.67 - Step 5: Solve for x
x = 5,739,818,063.67/103,518.40 - Step 6: Final answer
x = 55,447.32
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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.