Finding the Fourth Proportional to 135,540.54, 187,058.97 and 75,124.26
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Solution
The fourth proportional to 135,540.54, 187,058.97 and 75,124.26 is: 103,678.70
Step by Step Solution
- Step 1: Write the proportion equation
135,540.54 : 187,058.97 = 75,124.26 : x - Step 2: Convert to fraction form
135,540.54/187,058.97 = 75,124.26/x - Step 3: Cross multiply
135,540.54x = 187,058.97 × 75,124.26 - Step 4: Simplify right side
135,540.54x = 14,052,666,697.61 - Step 5: Solve for x
x = 14,052,666,697.61/135,540.54 - Step 6: Final answer
x = 103,678.70
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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.