Finding the Fourth Proportional to 187,831.18, 281,739.48 and 75,477.70
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Solution
The fourth proportional to 187,831.18, 281,739.48 and 75,477.70 is: 113,213.62
Step by Step Solution
- Step 1: Write the proportion equation
187,831.18 : 281,739.48 = 75,477.70 : x - Step 2: Convert to fraction form
187,831.18/281,739.48 = 75,477.70/x - Step 3: Cross multiply
187,831.18x = 281,739.48 × 75,477.70 - Step 4: Simplify right side
187,831.18x = 21,265,047,949.60 - Step 5: Solve for x
x = 21,265,047,949.60/187,831.18 - Step 6: Final answer
x = 113,213.62
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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.