Finding the Fourth Proportional to 135,419.58, 203,129.12 and 40,649.67
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Solution
The fourth proportional to 135,419.58, 203,129.12 and 40,649.67 is: 60,974.43
Step by Step Solution
- Step 1: Write the proportion equation
135,419.58 : 203,129.12 = 40,649.67 : x - Step 2: Convert to fraction form
135,419.58/203,129.12 = 40,649.67/x - Step 3: Cross multiply
135,419.58x = 203,129.12 × 40,649.67 - Step 4: Simplify right side
135,419.58x = 8,257,131,797.01 - Step 5: Solve for x
x = 8,257,131,797.01/135,419.58 - Step 6: Final answer
x = 60,974.43
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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.