Finding the Fourth Proportional to 135,717.81, 187,290.36 and 75,297.66
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Solution
The fourth proportional to 135,717.81, 187,290.36 and 75,297.66 is: 103,910.65
Step by Step Solution
- Step 1: Write the proportion equation
135,717.81 : 187,290.36 = 75,297.66 : x - Step 2: Convert to fraction form
135,717.81/187,290.36 = 75,297.66/x - Step 3: Cross multiply
135,717.81x = 187,290.36 × 75,297.66 - Step 4: Simplify right side
135,717.81x = 14,102,525,848.56 - Step 5: Solve for x
x = 14,102,525,848.56/135,717.81 - Step 6: Final answer
x = 103,910.65
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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.