Finding the Fourth Proportional to 179,709.63, 247,988.66 and 99,137.31
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Solution
The fourth proportional to 179,709.63, 247,988.66 and 99,137.31 is: 136,803.62
Step by Step Solution
- Step 1: Write the proportion equation
179,709.63 : 247,988.66 = 99,137.31 : x - Step 2: Convert to fraction form
179,709.63/247,988.66 = 99,137.31/x - Step 3: Cross multiply
179,709.63x = 247,988.66 × 99,137.31 - Step 4: Simplify right side
179,709.63x = 24,584,928,167.22 - Step 5: Solve for x
x = 24,584,928,167.22/179,709.63 - Step 6: Final answer
x = 136,803.62
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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.