Finding the Fourth Proportional to 142,897.12, 197,214.26 and 82,483.99
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Solution
The fourth proportional to 142,897.12, 197,214.26 and 82,483.99 is: 113,837.27
Step by Step Solution
- Step 1: Write the proportion equation
142,897.12 : 197,214.26 = 82,483.99 : x - Step 2: Convert to fraction form
142,897.12/197,214.26 = 82,483.99/x - Step 3: Cross multiply
142,897.12x = 197,214.26 × 82,483.99 - Step 4: Simplify right side
142,897.12x = 16,267,018,144.24 - Step 5: Solve for x
x = 16,267,018,144.24/142,897.12 - Step 6: Final answer
x = 113,837.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.