Finding the Fourth Proportional to 107,891.14, 148,889.80 and 60,143.46
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Solution
The fourth proportional to 107,891.14, 148,889.80 and 60,143.46 is: 82,997.99
Step by Step Solution
- Step 1: Write the proportion equation
107,891.14 : 148,889.80 = 60,143.46 : x - Step 2: Convert to fraction form
107,891.14/148,889.80 = 60,143.46/x - Step 3: Cross multiply
107,891.14x = 148,889.80 × 60,143.46 - Step 4: Simplify right side
107,891.14x = 8,954,747,730.71 - Step 5: Solve for x
x = 8,954,747,730.71/107,891.14 - Step 6: Final answer
x = 82,997.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.