Finding the Fourth Proportional to 138,144.79, 207,216.50 and 119,367.70
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Solution
The fourth proportional to 138,144.79, 207,216.50 and 119,367.70 is: 179,050.94
Step by Step Solution
- Step 1: Write the proportion equation
138,144.79 : 207,216.50 = 119,367.70 : x - Step 2: Convert to fraction form
138,144.79/207,216.50 = 119,367.70/x - Step 3: Cross multiply
138,144.79x = 207,216.50 × 119,367.70 - Step 4: Simplify right side
138,144.79x = 24,734,955,374.13 - Step 5: Solve for x
x = 24,734,955,374.13/138,144.79 - Step 6: Final answer
x = 179,050.94
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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.