Finding the Fourth Proportional to 135,837.97, 187,584.05 and 87,524.71
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Solution
The fourth proportional to 135,837.97, 187,584.05 and 87,524.71 is: 120,866.35
Step by Step Solution
- Step 1: Write the proportion equation
135,837.97 : 187,584.05 = 87,524.71 : x - Step 2: Convert to fraction form
135,837.97/187,584.05 = 87,524.71/x - Step 3: Cross multiply
135,837.97x = 187,584.05 × 87,524.71 - Step 4: Simplify right side
135,837.97x = 16,418,239,326.73 - Step 5: Solve for x
x = 16,418,239,326.73/135,837.97 - Step 6: Final answer
x = 120,866.35
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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.