Finding the Fourth Proportional to 125,727.60, 173,504.12 and 69,138.96
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Solution
The fourth proportional to 125,727.60, 173,504.12 and 69,138.96 is: 95,411.78
Step by Step Solution
- Step 1: Write the proportion equation
125,727.60 : 173,504.12 = 69,138.96 : x - Step 2: Convert to fraction form
125,727.60/173,504.12 = 69,138.96/x - Step 3: Cross multiply
125,727.60x = 173,504.12 × 69,138.96 - Step 4: Simplify right side
125,727.60x = 11,995,894,412.52 - Step 5: Solve for x
x = 11,995,894,412.52/125,727.60 - Step 6: Final answer
x = 95,411.78
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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.