Finding the Fourth Proportional to 125,119.13, 172,664.42 and 68,532.53
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Solution
The fourth proportional to 125,119.13, 172,664.42 and 68,532.53 is: 94,574.90
Step by Step Solution
- Step 1: Write the proportion equation
125,119.13 : 172,664.42 = 68,532.53 : x - Step 2: Convert to fraction form
125,119.13/172,664.42 = 68,532.53/x - Step 3: Cross multiply
125,119.13x = 172,664.42 × 68,532.53 - Step 4: Simplify right side
125,119.13x = 11,833,128,337.60 - Step 5: Solve for x
x = 11,833,128,337.60/125,119.13 - Step 6: Final answer
x = 94,574.90
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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.