Finding the Fourth Proportional to 121,201.60, 181,583.70 and 107,204.80
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Solution
The fourth proportional to 121,201.60, 181,583.70 and 107,204.80 is: 160,613.76
Step by Step Solution
- Step 1: Write the proportion equation
121,201.60 : 181,583.70 = 107,204.80 : x - Step 2: Convert to fraction form
121,201.60/181,583.70 = 107,204.80/x - Step 3: Cross multiply
121,201.60x = 181,583.70 × 107,204.80 - Step 4: Simplify right side
121,201.60x = 19,466,644,241.76 - Step 5: Solve for x
x = 19,466,644,241.76/121,201.60 - Step 6: Final answer
x = 160,613.76
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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.