Finding the Fourth Proportional to 118,738.64, 178,052.62 and 68,833.02
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Solution
The fourth proportional to 118,738.64, 178,052.62 and 68,833.02 is: 103,217.45
Step by Step Solution
- Step 1: Write the proportion equation
118,738.64 : 178,052.62 = 68,833.02 : x - Step 2: Convert to fraction form
118,738.64/178,052.62 = 68,833.02/x - Step 3: Cross multiply
118,738.64x = 178,052.62 × 68,833.02 - Step 4: Simplify right side
118,738.64x = 12,255,899,553.51 - Step 5: Solve for x
x = 12,255,899,553.51/118,738.64 - Step 6: Final answer
x = 103,217.45
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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.