Finding the Fourth Proportional to 68,136.55, 102,197.01 and 18,220.53
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Solution
The fourth proportional to 68,136.55, 102,197.01 and 18,220.53 is: 27,328.71
Step by Step Solution
- Step 1: Write the proportion equation
68,136.55 : 102,197.01 = 18,220.53 : x - Step 2: Convert to fraction form
68,136.55/102,197.01 = 18,220.53/x - Step 3: Cross multiply
68,136.55x = 102,197.01 × 18,220.53 - Step 4: Simplify right side
68,136.55x = 1,862,083,686.62 - Step 5: Solve for x
x = 1,862,083,686.62/68,136.55 - Step 6: Final answer
x = 27,328.71
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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.