Finding the Fourth Proportional to 124,759.44, 172,170.36 and 74,487.60
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Solution
The fourth proportional to 124,759.44, 172,170.36 and 74,487.60 is: 102,794.28
Step by Step Solution
- Step 1: Write the proportion equation
124,759.44 : 172,170.36 = 74,487.60 : x - Step 2: Convert to fraction form
124,759.44/172,170.36 = 74,487.60/x - Step 3: Cross multiply
124,759.44x = 172,170.36 × 74,487.60 - Step 4: Simplify right side
124,759.44x = 12,824,556,907.54 - Step 5: Solve for x
x = 12,824,556,907.54/124,759.44 - Step 6: Final answer
x = 102,794.28
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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.