Finding the Fourth Proportional to 155,512.76, 214,497.07 and 103,803.79
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Solution
The fourth proportional to 155,512.76, 214,497.07 and 103,803.79 is: 143,175.44
Step by Step Solution
- Step 1: Write the proportion equation
155,512.76 : 214,497.07 = 103,803.79 : x - Step 2: Convert to fraction form
155,512.76/214,497.07 = 103,803.79/x - Step 3: Cross multiply
155,512.76x = 214,497.07 × 103,803.79 - Step 4: Simplify right side
155,512.76x = 22,265,608,571.99 - Step 5: Solve for x
x = 22,265,608,571.99/155,512.76 - Step 6: Final answer
x = 143,175.44
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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.