Finding the Fourth Proportional to 170,999.49, 236,130.61 and 106,578.68
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Solution
The fourth proportional to 170,999.49, 236,130.61 and 106,578.68 is: 147,172.88
Step by Step Solution
- Step 1: Write the proportion equation
170,999.49 : 236,130.61 = 106,578.68 : x - Step 2: Convert to fraction form
170,999.49/236,130.61 = 106,578.68/x - Step 3: Cross multiply
170,999.49x = 236,130.61 × 106,578.68 - Step 4: Simplify right side
170,999.49x = 25,166,487,540.74 - Step 5: Solve for x
x = 25,166,487,540.74/170,999.49 - Step 6: Final answer
x = 147,172.88
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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.