Finding the Fourth Proportional to 144,497.91, 199,409.99 and 87,136.95
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Solution
The fourth proportional to 144,497.91, 199,409.99 and 87,136.95 is: 120,250.72
Step by Step Solution
- Step 1: Write the proportion equation
144,497.91 : 199,409.99 = 87,136.95 : x - Step 2: Convert to fraction form
144,497.91/199,409.99 = 87,136.95/x - Step 3: Cross multiply
144,497.91x = 199,409.99 × 87,136.95 - Step 4: Simplify right side
144,497.91x = 17,375,977,892.45 - Step 5: Solve for x
x = 17,375,977,892.45/144,497.91 - Step 6: Final answer
x = 120,250.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.