Finding the Fourth Proportional to 135,755.18, 203,665.70 and 40,979.71
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Solution
The fourth proportional to 135,755.18, 203,665.70 and 40,979.71 is: 61,479.50
Step by Step Solution
- Step 1: Write the proportion equation
135,755.18 : 203,665.70 = 40,979.71 : x - Step 2: Convert to fraction form
135,755.18/203,665.70 = 40,979.71/x - Step 3: Cross multiply
135,755.18x = 203,665.70 × 40,979.71 - Step 4: Simplify right side
135,755.18x = 8,346,160,150.94 - Step 5: Solve for x
x = 8,346,160,150.94/135,755.18 - Step 6: Final answer
x = 61,479.50
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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.