Finding the Fourth Proportional to 212,141.84, 292,817.77 and 126,161.28
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Solution
The fourth proportional to 212,141.84, 292,817.77 and 126,161.28 is: 174,139.46
Step by Step Solution
- Step 1: Write the proportion equation
212,141.84 : 292,817.77 = 126,161.28 : x - Step 2: Convert to fraction form
212,141.84/292,817.77 = 126,161.28/x - Step 3: Cross multiply
212,141.84x = 292,817.77 × 126,161.28 - Step 4: Simplify right side
212,141.84x = 36,942,264,354.54 - Step 5: Solve for x
x = 36,942,264,354.54/212,141.84 - Step 6: Final answer
x = 174,139.46
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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.