Finding the Fourth Proportional to 117,837.24, 162,675.54 and 79,797.84
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Solution
The fourth proportional to 117,837.24, 162,675.54 and 79,797.84 is: 110,161.75
Step by Step Solution
- Step 1: Write the proportion equation
117,837.24 : 162,675.54 = 79,797.84 : x - Step 2: Convert to fraction form
117,837.24/162,675.54 = 79,797.84/x - Step 3: Cross multiply
117,837.24x = 162,675.54 × 79,797.84 - Step 4: Simplify right side
117,837.24x = 12,981,156,712.83 - Step 5: Solve for x
x = 12,981,156,712.83/117,837.24 - Step 6: Final answer
x = 110,161.75
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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.