Finding the Fourth Proportional to 138,354.15, 207,531.26 and 106,810.26
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Solution
The fourth proportional to 138,354.15, 207,531.26 and 106,810.26 is: 160,215.42
Step by Step Solution
- Step 1: Write the proportion equation
138,354.15 : 207,531.26 = 106,810.26 : x - Step 2: Convert to fraction form
138,354.15/207,531.26 = 106,810.26/x - Step 3: Cross multiply
138,354.15x = 207,531.26 × 106,810.26 - Step 4: Simplify right side
138,354.15x = 22,166,468,476.26 - Step 5: Solve for x
x = 22,166,468,476.26/138,354.15 - Step 6: Final answer
x = 160,215.42
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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.