Finding the Fourth Proportional to 138,880.98, 208,163.93 and 63,846.09
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Solution
The fourth proportional to 138,880.98, 208,163.93 and 63,846.09 is: 95,696.71
Step by Step Solution
- Step 1: Write the proportion equation
138,880.98 : 208,163.93 = 63,846.09 : x - Step 2: Convert to fraction form
138,880.98/208,163.93 = 63,846.09/x - Step 3: Cross multiply
138,880.98x = 208,163.93 × 63,846.09 - Step 4: Simplify right side
138,880.98x = 13,290,452,690.30 - Step 5: Solve for x
x = 13,290,452,690.30/138,880.98 - Step 6: Final answer
x = 95,696.71
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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.