Finding the Fourth Proportional to 125,803.76, 173,609.19 and 69,215.13
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Solution
The fourth proportional to 125,803.76, 173,609.19 and 69,215.13 is: 95,516.88
Step by Step Solution
- Step 1: Write the proportion equation
125,803.76 : 173,609.19 = 69,215.13 : x - Step 2: Convert to fraction form
125,803.76/173,609.19 = 69,215.13/x - Step 3: Cross multiply
125,803.76x = 173,609.19 × 69,215.13 - Step 4: Simplify right side
125,803.76x = 12,016,382,851.32 - Step 5: Solve for x
x = 12,016,382,851.32/125,803.76 - Step 6: Final answer
x = 95,516.88
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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.