Finding the Fourth Proportional to 142,939.10, 214,402.51 and 48,163.03
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Solution
The fourth proportional to 142,939.10, 214,402.51 and 48,163.03 is: 72,242.47
Step by Step Solution
- Step 1: Write the proportion equation
142,939.10 : 214,402.51 = 48,163.03 : x - Step 2: Convert to fraction form
142,939.10/214,402.51 = 48,163.03/x - Step 3: Cross multiply
142,939.10x = 214,402.51 × 48,163.03 - Step 4: Simplify right side
142,939.10x = 10,326,274,045.40 - Step 5: Solve for x
x = 10,326,274,045.40/142,939.10 - Step 6: Final answer
x = 72,242.47
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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.