Finding the Fourth Proportional to 157,368.40, 236,096.40 and 68,629.68
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Solution
The fourth proportional to 157,368.40, 236,096.40 and 68,629.68 is: 102,963.62
Step by Step Solution
- Step 1: Write the proportion equation
157,368.40 : 236,096.40 = 68,629.68 : x - Step 2: Convert to fraction form
157,368.40/236,096.40 = 68,629.68/x - Step 3: Cross multiply
157,368.40x = 236,096.40 × 68,629.68 - Step 4: Simplify right side
157,368.40x = 16,203,220,381.15 - Step 5: Solve for x
x = 16,203,220,381.15/157,368.40 - Step 6: Final answer
x = 102,963.62
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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.