Finding the Fourth Proportional to 100,831.92, 151,154.42 and 44,642.09
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Solution
The fourth proportional to 100,831.92, 151,154.42 and 44,642.09 is: 66,921.75
Step by Step Solution
- Step 1: Write the proportion equation
100,831.92 : 151,154.42 = 44,642.09 : x - Step 2: Convert to fraction form
100,831.92/151,154.42 = 44,642.09/x - Step 3: Cross multiply
100,831.92x = 151,154.42 × 44,642.09 - Step 4: Simplify right side
100,831.92x = 6,747,848,242.56 - Step 5: Solve for x
x = 6,747,848,242.56/100,831.92 - Step 6: Final answer
x = 66,921.75
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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.