Finding the Fourth Proportional to 125,119.42, 172,663.14 and 68,530.84
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Solution
The fourth proportional to 125,119.42, 172,663.14 and 68,530.84 is: 94,571.65
Step by Step Solution
- Step 1: Write the proportion equation
125,119.42 : 172,663.14 = 68,530.84 : x - Step 2: Convert to fraction form
125,119.42/172,663.14 = 68,530.84/x - Step 3: Cross multiply
125,119.42x = 172,663.14 × 68,530.84 - Step 4: Simplify right side
125,119.42x = 11,832,750,021.24 - Step 5: Solve for x
x = 11,832,750,021.24/125,119.42 - Step 6: Final answer
x = 94,571.65
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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.