Finding the Fourth Proportional to 168,692.36, 253,349.58 and 133,855.88
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Solution
The fourth proportional to 168,692.36, 253,349.58 and 133,855.88 is: 201,030.63
Step by Step Solution
- Step 1: Write the proportion equation
168,692.36 : 253,349.58 = 133,855.88 : x - Step 2: Convert to fraction form
168,692.36/253,349.58 = 133,855.88/x - Step 3: Cross multiply
168,692.36x = 253,349.58 × 133,855.88 - Step 4: Simplify right side
168,692.36x = 33,912,330,978.53 - Step 5: Solve for x
x = 33,912,330,978.53/168,692.36 - Step 6: Final answer
x = 201,030.63
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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.