Finding the Fourth Proportional to 135,574.10, 187,103.46 and 75,163.70
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Solution
The fourth proportional to 135,574.10, 187,103.46 and 75,163.70 is: 103,732.12
Step by Step Solution
- Step 1: Write the proportion equation
135,574.10 : 187,103.46 = 75,163.70 : x - Step 2: Convert to fraction form
135,574.10/187,103.46 = 75,163.70/x - Step 3: Cross multiply
135,574.10x = 187,103.46 × 75,163.70 - Step 4: Simplify right side
135,574.10x = 14,063,388,336.40 - Step 5: Solve for x
x = 14,063,388,336.40/135,574.10 - Step 6: Final answer
x = 103,732.12
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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.