Finding the Fourth Proportional to 107,992.83, 162,043.91 and 72,858.68
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Solution
The fourth proportional to 107,992.83, 162,043.91 and 72,858.68 is: 109,324.89
Step by Step Solution
- Step 1: Write the proportion equation
107,992.83 : 162,043.91 = 72,858.68 : x - Step 2: Convert to fraction form
107,992.83/162,043.91 = 72,858.68/x - Step 3: Cross multiply
107,992.83x = 162,043.91 × 72,858.68 - Step 4: Simplify right side
107,992.83x = 11,806,304,210.13 - Step 5: Solve for x
x = 11,806,304,210.13/107,992.83 - Step 6: Final answer
x = 109,324.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.