Finding the Fourth Proportional to 135,928.19, 187,583.22 and 74,676.96
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Solution
The fourth proportional to 135,928.19, 187,583.22 and 74,676.96 is: 103,055.48
Step by Step Solution
- Step 1: Write the proportion equation
135,928.19 : 187,583.22 = 74,676.96 : x - Step 2: Convert to fraction form
135,928.19/187,583.22 = 74,676.96/x - Step 3: Cross multiply
135,928.19x = 187,583.22 × 74,676.96 - Step 4: Simplify right side
135,928.19x = 14,008,144,616.61 - Step 5: Solve for x
x = 14,008,144,616.61/135,928.19 - Step 6: Final answer
x = 103,055.48
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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.