Finding the Fourth Proportional to 135,864.44, 187,498.79 and 75,435.09
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Solution
The fourth proportional to 135,864.44, 187,498.79 and 75,435.09 is: 104,103.68
Step by Step Solution
- Step 1: Write the proportion equation
135,864.44 : 187,498.79 = 75,435.09 : x - Step 2: Convert to fraction form
135,864.44/187,498.79 = 75,435.09/x - Step 3: Cross multiply
135,864.44x = 187,498.79 × 75,435.09 - Step 4: Simplify right side
135,864.44x = 14,143,988,098.54 - Step 5: Solve for x
x = 14,143,988,098.54/135,864.44 - Step 6: Final answer
x = 104,103.68
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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.