Finding the Fourth Proportional to 107,926.08, 161,789.76 and 72,877.92
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Solution
The fourth proportional to 107,926.08, 161,789.76 and 72,877.92 is: 109,249.79
Step by Step Solution
- Step 1: Write the proportion equation
107,926.08 : 161,789.76 = 72,877.92 : x - Step 2: Convert to fraction form
107,926.08/161,789.76 = 72,877.92/x - Step 3: Cross multiply
107,926.08x = 161,789.76 × 72,877.92 - Step 4: Simplify right side
107,926.08x = 11,790,901,186.10 - Step 5: Solve for x
x = 11,790,901,186.10/107,926.08 - Step 6: Final answer
x = 109,249.79
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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.