Finding the Fourth Proportional to 136,626.99, 204,554.08 and 72,438.91
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Solution
The fourth proportional to 136,626.99, 204,554.08 and 72,438.91 is: 108,453.50
Step by Step Solution
- Step 1: Write the proportion equation
136,626.99 : 204,554.08 = 72,438.91 : x - Step 2: Convert to fraction form
136,626.99/204,554.08 = 72,438.91/x - Step 3: Cross multiply
136,626.99x = 204,554.08 × 72,438.91 - Step 4: Simplify right side
136,626.99x = 14,817,674,591.25 - Step 5: Solve for x
x = 14,817,674,591.25/136,626.99 - Step 6: Final answer
x = 108,453.50
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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.