Finding the Fourth Proportional to 138,021.41, 207,075.84 and 49,272.95
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Solution
The fourth proportional to 138,021.41, 207,075.84 and 49,272.95 is: 73,925.03
Step by Step Solution
- Step 1: Write the proportion equation
138,021.41 : 207,075.84 = 49,272.95 : x - Step 2: Convert to fraction form
138,021.41/207,075.84 = 49,272.95/x - Step 3: Cross multiply
138,021.41x = 207,075.84 × 49,272.95 - Step 4: Simplify right side
138,021.41x = 10,203,236,475.15 - Step 5: Solve for x
x = 10,203,236,475.15/138,021.41 - Step 6: Final answer
x = 73,925.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.