Finding the Fourth Proportional to 102,035.49, 140,745.45 and 70,149.03
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Solution
The fourth proportional to 102,035.49, 140,745.45 and 70,149.03 is: 96,761.99
Step by Step Solution
- Step 1: Write the proportion equation
102,035.49 : 140,745.45 = 70,149.03 : x - Step 2: Convert to fraction form
102,035.49/140,745.45 = 70,149.03/x - Step 3: Cross multiply
102,035.49x = 140,745.45 × 70,149.03 - Step 4: Simplify right side
102,035.49x = 9,873,156,794.41 - Step 5: Solve for x
x = 9,873,156,794.41/102,035.49 - Step 6: Final answer
x = 96,761.99
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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.