Finding the Fourth Proportional to 117,149.84, 161,668.12 and 63,436.08
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Solution
The fourth proportional to 117,149.84, 161,668.12 and 63,436.08 is: 87,542.52
Step by Step Solution
- Step 1: Write the proportion equation
117,149.84 : 161,668.12 = 63,436.08 : x - Step 2: Convert to fraction form
117,149.84/161,668.12 = 63,436.08/x - Step 3: Cross multiply
117,149.84x = 161,668.12 × 63,436.08 - Step 4: Simplify right side
117,149.84x = 10,255,591,793.77 - Step 5: Solve for x
x = 10,255,591,793.77/117,149.84 - Step 6: Final answer
x = 87,542.52
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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.