Finding the Fourth Proportional to 135,901.76, 203,845.44 and 42,396.80
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Solution
The fourth proportional to 135,901.76, 203,845.44 and 42,396.80 is: 63,592.95
Step by Step Solution
- Step 1: Write the proportion equation
135,901.76 : 203,845.44 = 42,396.80 : x - Step 2: Convert to fraction form
135,901.76/203,845.44 = 42,396.80/x - Step 3: Cross multiply
135,901.76x = 203,845.44 × 42,396.80 - Step 4: Simplify right side
135,901.76x = 8,642,394,350.59 - Step 5: Solve for x
x = 8,642,394,350.59/135,901.76 - Step 6: Final answer
x = 63,592.95
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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.