Finding the Fourth Proportional to 135,643.44, 203,428.20 and 56,744.88
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Solution
The fourth proportional to 135,643.44, 203,428.20 and 56,744.88 is: 85,101.86
Step by Step Solution
- Step 1: Write the proportion equation
135,643.44 : 203,428.20 = 56,744.88 : x - Step 2: Convert to fraction form
135,643.44/203,428.20 = 56,744.88/x - Step 3: Cross multiply
135,643.44x = 203,428.20 × 56,744.88 - Step 4: Simplify right side
135,643.44x = 11,543,508,797.62 - Step 5: Solve for x
x = 11,543,508,797.62/135,643.44 - Step 6: Final answer
x = 85,101.86
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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.