Finding the Fourth Proportional to 193,193.28, 266,721.12 and 121,634.64
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Solution
The fourth proportional to 193,193.28, 266,721.12 and 121,634.64 is: 167,927.83
Step by Step Solution
- Step 1: Write the proportion equation
193,193.28 : 266,721.12 = 121,634.64 : x - Step 2: Convert to fraction form
193,193.28/266,721.12 = 121,634.64/x - Step 3: Cross multiply
193,193.28x = 266,721.12 × 121,634.64 - Step 4: Simplify right side
193,193.28x = 32,442,527,411.60 - Step 5: Solve for x
x = 32,442,527,411.60/193,193.28 - Step 6: Final answer
x = 167,927.83
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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.