Finding the Fourth Proportional to 124,668.91, 187,003.37 and 31,174.66
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Solution
The fourth proportional to 124,668.91, 187,003.37 and 31,174.66 is: 46,761.99
Step by Step Solution
- Step 1: Write the proportion equation
124,668.91 : 187,003.37 = 31,174.66 : x - Step 2: Convert to fraction form
124,668.91/187,003.37 = 31,174.66/x - Step 3: Cross multiply
124,668.91x = 187,003.37 × 31,174.66 - Step 4: Simplify right side
124,668.91x = 5,829,766,478.60 - Step 5: Solve for x
x = 5,829,766,478.60/124,668.91 - Step 6: Final answer
x = 46,761.99
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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.