Finding the Fourth Proportional to 132,807.80, 199,211.70 and 115,311.80
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Solution
The fourth proportional to 132,807.80, 199,211.70 and 115,311.80 is: 172,967.70
Step by Step Solution
- Step 1: Write the proportion equation
132,807.80 : 199,211.70 = 115,311.80 : x - Step 2: Convert to fraction form
132,807.80/199,211.70 = 115,311.80/x - Step 3: Cross multiply
132,807.80x = 199,211.70 × 115,311.80 - Step 4: Simplify right side
132,807.80x = 22,971,459,708.06 - Step 5: Solve for x
x = 22,971,459,708.06/132,807.80 - Step 6: Final answer
x = 172,967.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.