Finding the Fourth Proportional to 138,145.84, 207,243.81 and 57,093.00
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Solution
The fourth proportional to 138,145.84, 207,243.81 and 57,093.00 is: 85,649.85
Step by Step Solution
- Step 1: Write the proportion equation
138,145.84 : 207,243.81 = 57,093.00 : x - Step 2: Convert to fraction form
138,145.84/207,243.81 = 57,093.00/x - Step 3: Cross multiply
138,145.84x = 207,243.81 × 57,093.00 - Step 4: Simplify right side
138,145.84x = 11,832,170,067.17 - Step 5: Solve for x
x = 11,832,170,067.17/138,145.84 - Step 6: Final answer
x = 85,649.85
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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.