Finding the Fourth Proportional to 122,232.68, 168,677.86 and 68,521.18
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Solution
The fourth proportional to 122,232.68, 168,677.86 and 68,521.18 is: 94,557.41
Step by Step Solution
- Step 1: Write the proportion equation
122,232.68 : 168,677.86 = 68,521.18 : x - Step 2: Convert to fraction form
122,232.68/168,677.86 = 68,521.18/x - Step 3: Cross multiply
122,232.68x = 168,677.86 × 68,521.18 - Step 4: Simplify right side
122,232.68x = 11,558,006,007.07 - Step 5: Solve for x
x = 11,558,006,007.07/122,232.68 - Step 6: Final answer
x = 94,557.41
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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.