Finding the Fourth Proportional to 103,708.10, 155,452.80 and 40,503.80
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Solution
The fourth proportional to 103,708.10, 155,452.80 and 40,503.80 is: 60,712.99
Step by Step Solution
- Step 1: Write the proportion equation
103,708.10 : 155,452.80 = 40,503.80 : x - Step 2: Convert to fraction form
103,708.10/155,452.80 = 40,503.80/x - Step 3: Cross multiply
103,708.10x = 155,452.80 × 40,503.80 - Step 4: Simplify right side
103,708.10x = 6,296,429,120.64 - Step 5: Solve for x
x = 6,296,429,120.64/103,708.10 - Step 6: Final answer
x = 60,712.99
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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.