Finding the Fourth Proportional to 125,682.99, 188,614.46 and 45,720.82
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Solution
The fourth proportional to 125,682.99, 188,614.46 and 45,720.82 is: 68,613.96
Step by Step Solution
- Step 1: Write the proportion equation
125,682.99 : 188,614.46 = 45,720.82 : x - Step 2: Convert to fraction form
125,682.99/188,614.46 = 45,720.82/x - Step 3: Cross multiply
125,682.99x = 188,614.46 × 45,720.82 - Step 4: Simplify right side
125,682.99x = 8,623,607,775.06 - Step 5: Solve for x
x = 8,623,607,775.06/125,682.99 - Step 6: Final answer
x = 68,613.96
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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.