Finding the Fourth Proportional to 125,979.68, 173,874.62 and 72,282.48
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Solution
The fourth proportional to 125,979.68, 173,874.62 and 72,282.48 is: 99,762.82
Step by Step Solution
- Step 1: Write the proportion equation
125,979.68 : 173,874.62 = 72,282.48 : x - Step 2: Convert to fraction form
125,979.68/173,874.62 = 72,282.48/x - Step 3: Cross multiply
125,979.68x = 173,874.62 × 72,282.48 - Step 4: Simplify right side
125,979.68x = 12,568,088,742.66 - Step 5: Solve for x
x = 12,568,088,742.66/125,979.68 - Step 6: Final answer
x = 99,762.82
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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.