Finding the Fourth Proportional to 129,292.80, 193,939.17 and 40,554.06
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Solution
The fourth proportional to 129,292.80, 193,939.17 and 40,554.06 is: 60,831.08
Step by Step Solution
- Step 1: Write the proportion equation
129,292.80 : 193,939.17 = 40,554.06 : x - Step 2: Convert to fraction form
129,292.80/193,939.17 = 40,554.06/x - Step 3: Cross multiply
129,292.80x = 193,939.17 × 40,554.06 - Step 4: Simplify right side
129,292.80x = 7,865,020,736.53 - Step 5: Solve for x
x = 7,865,020,736.53/129,292.80 - Step 6: Final answer
x = 60,831.08
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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.