Finding the Fourth Proportional to 135,918.99, 203,902.19 and 51,686.39
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Solution
The fourth proportional to 135,918.99, 203,902.19 and 51,686.39 is: 77,538.59
Step by Step Solution
- Step 1: Write the proportion equation
135,918.99 : 203,902.19 = 51,686.39 : x - Step 2: Convert to fraction form
135,918.99/203,902.19 = 51,686.39/x - Step 3: Cross multiply
135,918.99x = 203,902.19 × 51,686.39 - Step 4: Simplify right side
135,918.99x = 10,538,966,836.25 - Step 5: Solve for x
x = 10,538,966,836.25/135,918.99 - Step 6: Final answer
x = 77,538.59
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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.