Finding the Fourth Proportional to 121,291.30, 181,936.95 and 110,793.70
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Solution
The fourth proportional to 121,291.30, 181,936.95 and 110,793.70 is: 166,190.55
Step by Step Solution
- Step 1: Write the proportion equation
121,291.30 : 181,936.95 = 110,793.70 : x - Step 2: Convert to fraction form
121,291.30/181,936.95 = 110,793.70/x - Step 3: Cross multiply
121,291.30x = 181,936.95 × 110,793.70 - Step 4: Simplify right side
121,291.30x = 20,157,467,857.22 - Step 5: Solve for x
x = 20,157,467,857.22/121,291.30 - Step 6: Final answer
x = 166,190.55
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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.