Finding the Fourth Proportional to 125,075.44, 172,620.78 and 74,084.14
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Solution
The fourth proportional to 125,075.44, 172,620.78 and 74,084.14 is: 102,245.99
Step by Step Solution
- Step 1: Write the proportion equation
125,075.44 : 172,620.78 = 74,084.14 : x - Step 2: Convert to fraction form
125,075.44/172,620.78 = 74,084.14/x - Step 3: Cross multiply
125,075.44x = 172,620.78 × 74,084.14 - Step 4: Simplify right side
125,075.44x = 12,788,462,032.43 - Step 5: Solve for x
x = 12,788,462,032.43/125,075.44 - Step 6: Final answer
x = 102,245.99
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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.