Finding the Fourth Proportional to 135,284.11, 186,691.23 and 74,853.65
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Solution
The fourth proportional to 135,284.11, 186,691.23 and 74,853.65 is: 103,297.58
Step by Step Solution
- Step 1: Write the proportion equation
135,284.11 : 186,691.23 = 74,853.65 : x - Step 2: Convert to fraction form
135,284.11/186,691.23 = 74,853.65/x - Step 3: Cross multiply
135,284.11x = 186,691.23 × 74,853.65 - Step 4: Simplify right side
135,284.11x = 13,974,520,455.22 - Step 5: Solve for x
x = 13,974,520,455.22/135,284.11 - Step 6: Final answer
x = 103,297.58
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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.