Finding the Fourth Proportional to 103,029.12, 154,556.64 and 36,453.60
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Solution
The fourth proportional to 103,029.12, 154,556.64 and 36,453.60 is: 54,684.99
Step by Step Solution
- Step 1: Write the proportion equation
103,029.12 : 154,556.64 = 36,453.60 : x - Step 2: Convert to fraction form
103,029.12/154,556.64 = 36,453.60/x - Step 3: Cross multiply
103,029.12x = 154,556.64 × 36,453.60 - Step 4: Simplify right side
103,029.12x = 5,634,145,931.90 - Step 5: Solve for x
x = 5,634,145,931.90/103,029.12 - Step 6: Final answer
x = 54,684.99
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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.