Finding the Fourth Proportional to 125,815.68, 173,567.61 and 80,470.97
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Solution
The fourth proportional to 125,815.68, 173,567.61 and 80,470.97 is: 111,012.82
Step by Step Solution
- Step 1: Write the proportion equation
125,815.68 : 173,567.61 = 80,470.97 : x - Step 2: Convert to fraction form
125,815.68/173,567.61 = 80,470.97/x - Step 3: Cross multiply
125,815.68x = 173,567.61 × 80,470.97 - Step 4: Simplify right side
125,815.68x = 13,967,153,720.32 - Step 5: Solve for x
x = 13,967,153,720.32/125,815.68 - Step 6: Final answer
x = 111,012.82
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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.