Finding the Fourth Proportional to 131,136.84, 196,163.97 and 99,307.80
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Solution
The fourth proportional to 131,136.84, 196,163.97 and 99,307.80 is: 148,551.79
Step by Step Solution
- Step 1: Write the proportion equation
131,136.84 : 196,163.97 = 99,307.80 : x - Step 2: Convert to fraction form
131,136.84/196,163.97 = 99,307.80/x - Step 3: Cross multiply
131,136.84x = 196,163.97 × 99,307.80 - Step 4: Simplify right side
131,136.84x = 19,480,612,299.97 - Step 5: Solve for x
x = 19,480,612,299.97/131,136.84 - Step 6: Final answer
x = 148,551.79
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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.