Finding the Fourth Proportional to 129,220.28, 193,813.26 and 49,236.68
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Solution
The fourth proportional to 129,220.28, 193,813.26 and 49,236.68 is: 73,848.48
Step by Step Solution
- Step 1: Write the proportion equation
129,220.28 : 193,813.26 = 49,236.68 : x - Step 2: Convert to fraction form
129,220.28/193,813.26 = 49,236.68/x - Step 3: Cross multiply
129,220.28x = 193,813.26 × 49,236.68 - Step 4: Simplify right side
129,220.28x = 9,542,721,462.38 - Step 5: Solve for x
x = 9,542,721,462.38/129,220.28 - Step 6: Final answer
x = 73,848.48
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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.