Finding the Fourth Proportional to 125,148.72, 172,709.63 and 68,560.09
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Solution
The fourth proportional to 125,148.72, 172,709.63 and 68,560.09 is: 94,615.33
Step by Step Solution
- Step 1: Write the proportion equation
125,148.72 : 172,709.63 = 68,560.09 : x - Step 2: Convert to fraction form
125,148.72/172,709.63 = 68,560.09/x - Step 3: Cross multiply
125,148.72x = 172,709.63 × 68,560.09 - Step 4: Simplify right side
125,148.72x = 11,840,987,776.67 - Step 5: Solve for x
x = 11,840,987,776.67/125,148.72 - Step 6: Final answer
x = 94,615.33
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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.