Finding the Fourth Proportional to 124,625.99, 186,939.39 and 31,131.74
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Solution
The fourth proportional to 124,625.99, 186,939.39 and 31,131.74 is: 46,697.71
Step by Step Solution
- Step 1: Write the proportion equation
124,625.99 : 186,939.39 = 31,131.74 : x - Step 2: Convert to fraction form
124,625.99/186,939.39 = 31,131.74/x - Step 3: Cross multiply
124,625.99x = 186,939.39 × 31,131.74 - Step 4: Simplify right side
124,625.99x = 5,819,748,485.24 - Step 5: Solve for x
x = 5,819,748,485.24/124,625.99 - Step 6: Final answer
x = 46,697.71
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1.5x scale
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.