Finding the Fourth Proportional to 135,757.18, 203,668.70 and 40,981.71
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Solution
The fourth proportional to 135,757.18, 203,668.70 and 40,981.71 is: 61,482.51
Step by Step Solution
- Step 1: Write the proportion equation
135,757.18 : 203,668.70 = 40,981.71 : x - Step 2: Convert to fraction form
135,757.18/203,668.70 = 40,981.71/x - Step 3: Cross multiply
135,757.18x = 203,668.70 × 40,981.71 - Step 4: Simplify right side
135,757.18x = 8,346,691,599.48 - Step 5: Solve for x
x = 8,346,691,599.48/135,757.18 - Step 6: Final answer
x = 61,482.51
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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.