Finding the Fourth Proportional to 129,094.76, 193,674.99 and 75,831.77
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Solution
The fourth proportional to 129,094.76, 193,674.99 and 75,831.77 is: 113,766.95
Step by Step Solution
- Step 1: Write the proportion equation
129,094.76 : 193,674.99 = 75,831.77 : x - Step 2: Convert to fraction form
129,094.76/193,674.99 = 75,831.77/x - Step 3: Cross multiply
129,094.76x = 193,674.99 × 75,831.77 - Step 4: Simplify right side
129,094.76x = 14,686,716,917.27 - Step 5: Solve for x
x = 14,686,716,917.27/129,094.76 - Step 6: Final answer
x = 113,766.95
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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.