Finding the Fourth Proportional to 142,021.12, 213,031.68 and 48,527.68
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Solution
The fourth proportional to 142,021.12, 213,031.68 and 48,527.68 is: 72,791.52
Step by Step Solution
- Step 1: Write the proportion equation
142,021.12 : 213,031.68 = 48,527.68 : x - Step 2: Convert to fraction form
142,021.12/213,031.68 = 48,527.68/x - Step 3: Cross multiply
142,021.12x = 213,031.68 × 48,527.68 - Step 4: Simplify right side
142,021.12x = 10,337,933,196.90 - Step 5: Solve for x
x = 10,337,933,196.90/142,021.12 - Step 6: Final answer
x = 72,791.52
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1.5x scale
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.