Finding the Fourth Proportional to 122,011.26, 168,378.39 and 68,294.94
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Solution
The fourth proportional to 122,011.26, 168,378.39 and 68,294.94 is: 94,248.61
Step by Step Solution
- Step 1: Write the proportion equation
122,011.26 : 168,378.39 = 68,294.94 : x - Step 2: Convert to fraction form
122,011.26/168,378.39 = 68,294.94/x - Step 3: Cross multiply
122,011.26x = 168,378.39 × 68,294.94 - Step 4: Simplify right side
122,011.26x = 11,499,392,042.35 - Step 5: Solve for x
x = 11,499,392,042.35/122,011.26 - Step 6: Final answer
x = 94,248.61
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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.