Finding the Fourth Proportional to 128,297.25, 192,433.58 and 39,526.92
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Solution
The fourth proportional to 128,297.25, 192,433.58 and 39,526.92 is: 59,286.59
Step by Step Solution
- Step 1: Write the proportion equation
128,297.25 : 192,433.58 = 39,526.92 : x - Step 2: Convert to fraction form
128,297.25/192,433.58 = 39,526.92/x - Step 3: Cross multiply
128,297.25x = 192,433.58 × 39,526.92 - Step 4: Simplify right side
128,297.25x = 7,606,306,721.97 - Step 5: Solve for x
x = 7,606,306,721.97/128,297.25 - Step 6: Final answer
x = 59,286.59
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1.5x scale
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.