Finding the Fourth Proportional to 133,319.70, 199,906.65 and 54,344.70
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Solution
The fourth proportional to 133,319.70, 199,906.65 and 54,344.70 is: 81,487.33
Step by Step Solution
- Step 1: Write the proportion equation
133,319.70 : 199,906.65 = 54,344.70 : x - Step 2: Convert to fraction form
133,319.70/199,906.65 = 54,344.70/x - Step 3: Cross multiply
133,319.70x = 199,906.65 × 54,344.70 - Step 4: Simplify right side
133,319.70x = 10,863,866,922.26 - Step 5: Solve for x
x = 10,863,866,922.26/133,319.70 - Step 6: Final answer
x = 81,487.33
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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.