Finding the Fourth Proportional to 151,489.68, 209,046.87 and 86,944.02
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Solution
The fourth proportional to 151,489.68, 209,046.87 and 86,944.02 is: 119,977.65
Step by Step Solution
- Step 1: Write the proportion equation
151,489.68 : 209,046.87 = 86,944.02 : x - Step 2: Convert to fraction form
151,489.68/209,046.87 = 86,944.02/x - Step 3: Cross multiply
151,489.68x = 209,046.87 × 86,944.02 - Step 4: Simplify right side
151,489.68x = 18,175,375,246.22 - Step 5: Solve for x
x = 18,175,375,246.22/151,489.68 - Step 6: Final answer
x = 119,977.65
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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.