Finding the Fourth Proportional to 142,921.44, 214,375.62 and 58,660.80
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Solution
The fourth proportional to 142,921.44, 214,375.62 and 58,660.80 is: 87,988.52
Step by Step Solution
- Step 1: Write the proportion equation
142,921.44 : 214,375.62 = 58,660.80 : x - Step 2: Convert to fraction form
142,921.44/214,375.62 = 58,660.80/x - Step 3: Cross multiply
142,921.44x = 214,375.62 × 58,660.80 - Step 4: Simplify right side
142,921.44x = 12,575,445,369.70 - Step 5: Solve for x
x = 12,575,445,369.70/142,921.44 - Step 6: Final answer
x = 87,988.52
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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.