Finding the Fourth Proportional to 100,164.68, 138,227.28 and 54,845.63
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Solution
The fourth proportional to 100,164.68, 138,227.28 and 54,845.63 is: 75,686.99
Step by Step Solution
- Step 1: Write the proportion equation
100,164.68 : 138,227.28 = 54,845.63 : x - Step 2: Convert to fraction form
100,164.68/138,227.28 = 54,845.63/x - Step 3: Cross multiply
100,164.68x = 138,227.28 × 54,845.63 - Step 4: Simplify right side
100,164.68x = 7,581,162,727.86 - Step 5: Solve for x
x = 7,581,162,727.86/100,164.68 - Step 6: Final answer
x = 75,686.99
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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.