Finding the Fourth Proportional to 133,821.19, 200,732.16 and 45,136.99
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Solution
The fourth proportional to 133,821.19, 200,732.16 and 45,136.99 is: 67,705.61
Step by Step Solution
- Step 1: Write the proportion equation
133,821.19 : 200,732.16 = 45,136.99 : x - Step 2: Convert to fraction form
133,821.19/200,732.16 = 45,136.99/x - Step 3: Cross multiply
133,821.19x = 200,732.16 × 45,136.99 - Step 4: Simplify right side
133,821.19x = 9,060,445,498.60 - Step 5: Solve for x
x = 9,060,445,498.60/133,821.19 - Step 6: Final answer
x = 67,705.61
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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.