Finding the Fourth Proportional to 138,168.90, 207,252.87 and 59,231.94
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Solution
The fourth proportional to 138,168.90, 207,252.87 and 59,231.94 is: 88,847.70
Step by Step Solution
- Step 1: Write the proportion equation
138,168.90 : 207,252.87 = 59,231.94 : x - Step 2: Convert to fraction form
138,168.90/207,252.87 = 59,231.94/x - Step 3: Cross multiply
138,168.90x = 207,252.87 × 59,231.94 - Step 4: Simplify right side
138,168.90x = 12,275,989,560.67 - Step 5: Solve for x
x = 12,275,989,560.67/138,168.90 - Step 6: Final answer
x = 88,847.70
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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.