Finding the Fourth Proportional to 149,234.26, 205,938.42 and 84,708.65
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Solution
The fourth proportional to 149,234.26, 205,938.42 and 84,708.65 is: 116,895.17
Step by Step Solution
- Step 1: Write the proportion equation
149,234.26 : 205,938.42 = 84,708.65 : x - Step 2: Convert to fraction form
149,234.26/205,938.42 = 84,708.65/x - Step 3: Cross multiply
149,234.26x = 205,938.42 × 84,708.65 - Step 4: Simplify right side
149,234.26x = 17,444,764,193.98 - Step 5: Solve for x
x = 17,444,764,193.98/149,234.26 - Step 6: Final answer
x = 116,895.17
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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.