Finding the Fourth Proportional to 117,561.43, 162,229.34 and 66,572.99
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Solution
The fourth proportional to 117,561.43, 162,229.34 and 66,572.99 is: 91,867.65
Step by Step Solution
- Step 1: Write the proportion equation
117,561.43 : 162,229.34 = 66,572.99 : x - Step 2: Convert to fraction form
117,561.43/162,229.34 = 66,572.99/x - Step 3: Cross multiply
117,561.43x = 162,229.34 × 66,572.99 - Step 4: Simplify right side
117,561.43x = 10,800,092,432.37 - Step 5: Solve for x
x = 10,800,092,432.37/117,561.43 - Step 6: Final answer
x = 91,867.65
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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.