Finding the Fourth Proportional to 135,186.39, 186,570.81 and 74,761.65
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Solution
The fourth proportional to 135,186.39, 186,570.81 and 74,761.65 is: 103,178.59
Step by Step Solution
- Step 1: Write the proportion equation
135,186.39 : 186,570.81 = 74,761.65 : x - Step 2: Convert to fraction form
135,186.39/186,570.81 = 74,761.65/x - Step 3: Cross multiply
135,186.39x = 186,570.81 × 74,761.65 - Step 4: Simplify right side
135,186.39x = 13,948,341,597.44 - Step 5: Solve for x
x = 13,948,341,597.44/135,186.39 - Step 6: Final answer
x = 103,178.59
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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.