Finding the Fourth Proportional to 139,840.68, 209,680.02 and 95,520.99
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Solution
The fourth proportional to 139,840.68, 209,680.02 and 95,520.99 is: 143,226.16
Step by Step Solution
- Step 1: Write the proportion equation
139,840.68 : 209,680.02 = 95,520.99 : x - Step 2: Convert to fraction form
139,840.68/209,680.02 = 95,520.99/x - Step 3: Cross multiply
139,840.68x = 209,680.02 × 95,520.99 - Step 4: Simplify right side
139,840.68x = 20,028,843,093.62 - Step 5: Solve for x
x = 20,028,843,093.62/139,840.68 - Step 6: Final answer
x = 143,226.16
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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.