Finding the Fourth Proportional to 135,878.56, 187,529.71 and 82,163.96
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Solution
The fourth proportional to 135,878.56, 187,529.71 and 82,163.96 is: 113,396.72
Step by Step Solution
- Step 1: Write the proportion equation
135,878.56 : 187,529.71 = 82,163.96 : x - Step 2: Convert to fraction form
135,878.56/187,529.71 = 82,163.96/x - Step 3: Cross multiply
135,878.56x = 187,529.71 × 82,163.96 - Step 4: Simplify right side
135,878.56x = 15,408,182,242.78 - Step 5: Solve for x
x = 15,408,182,242.78/135,878.56 - Step 6: Final answer
x = 113,396.72
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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.