Finding the Fourth Proportional to 124,086.84, 186,059.64 and 84,691.68
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Solution
The fourth proportional to 124,086.84, 186,059.64 and 84,691.68 is: 126,989.32
Step by Step Solution
- Step 1: Write the proportion equation
124,086.84 : 186,059.64 = 84,691.68 : x - Step 2: Convert to fraction form
124,086.84/186,059.64 = 84,691.68/x - Step 3: Cross multiply
124,086.84x = 186,059.64 × 84,691.68 - Step 4: Simplify right side
124,086.84x = 15,757,703,491.80 - Step 5: Solve for x
x = 15,757,703,491.80/124,086.84 - Step 6: Final answer
x = 126,989.32
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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.