Finding the Fourth Proportional to 135,836.43, 187,249.39 and 107,106.54
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Solution
The fourth proportional to 135,836.43, 187,249.39 and 107,106.54 is: 147,645.48
Step by Step Solution
- Step 1: Write the proportion equation
135,836.43 : 187,249.39 = 107,106.54 : x - Step 2: Convert to fraction form
135,836.43/187,249.39 = 107,106.54/x - Step 3: Cross multiply
135,836.43x = 187,249.39 × 107,106.54 - Step 4: Simplify right side
135,836.43x = 20,055,634,280.01 - Step 5: Solve for x
x = 20,055,634,280.01/135,836.43 - Step 6: Final answer
x = 147,645.48
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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.