Finding the Fourth Proportional to 134,070.40, 201,163.20 and 68,406.40
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Solution
The fourth proportional to 134,070.40, 201,163.20 and 68,406.40 is: 102,638.99
Step by Step Solution
- Step 1: Write the proportion equation
134,070.40 : 201,163.20 = 68,406.40 : x - Step 2: Convert to fraction form
134,070.40/201,163.20 = 68,406.40/x - Step 3: Cross multiply
134,070.40x = 201,163.20 × 68,406.40 - Step 4: Simplify right side
134,070.40x = 13,760,850,324.48 - Step 5: Solve for x
x = 13,760,850,324.48/134,070.40 - Step 6: Final answer
x = 102,638.99
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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.