Finding the Fourth Proportional to 142,126.27, 212,956.12 and 48,580.99
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Solution
The fourth proportional to 142,126.27, 212,956.12 and 48,580.99 is: 72,791.74
Step by Step Solution
- Step 1: Write the proportion equation
142,126.27 : 212,956.12 = 48,580.99 : x - Step 2: Convert to fraction form
142,126.27/212,956.12 = 48,580.99/x - Step 3: Cross multiply
142,126.27x = 212,956.12 × 48,580.99 - Step 4: Simplify right side
142,126.27x = 10,345,619,136.16 - Step 5: Solve for x
x = 10,345,619,136.16/142,126.27 - Step 6: Final answer
x = 72,791.74
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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.