Finding the Fourth Proportional to 134,678.58, 185,857.74 and 74,251.44
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Solution
The fourth proportional to 134,678.58, 185,857.74 and 74,251.44 is: 102,467.70
Step by Step Solution
- Step 1: Write the proportion equation
134,678.58 : 185,857.74 = 74,251.44 : x - Step 2: Convert to fraction form
134,678.58/185,857.74 = 74,251.44/x - Step 3: Cross multiply
134,678.58x = 185,857.74 × 74,251.44 - Step 4: Simplify right side
134,678.58x = 13,800,204,830.15 - Step 5: Solve for x
x = 13,800,204,830.15/134,678.58 - Step 6: Final answer
x = 102,467.70
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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.