Finding the Fourth Proportional to 124,623.99, 186,936.39 and 31,129.74
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Solution
The fourth proportional to 124,623.99, 186,936.39 and 31,129.74 is: 46,694.71
Step by Step Solution
- Step 1: Write the proportion equation
124,623.99 : 186,936.39 = 31,129.74 : x - Step 2: Convert to fraction form
124,623.99/186,936.39 = 31,129.74/x - Step 3: Cross multiply
124,623.99x = 186,936.39 × 31,129.74 - Step 4: Simplify right side
124,623.99x = 5,819,281,217.24 - Step 5: Solve for x
x = 5,819,281,217.24/124,623.99 - Step 6: Final answer
x = 46,694.71
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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.