Finding the Fourth Proportional to 124,431.71, 171,715.93 and 67,843.09
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Solution
The fourth proportional to 124,431.71, 171,715.93 and 67,843.09 is: 93,623.55
Step by Step Solution
- Step 1: Write the proportion equation
124,431.71 : 171,715.93 = 67,843.09 : x - Step 2: Convert to fraction form
124,431.71/171,715.93 = 67,843.09/x - Step 3: Cross multiply
124,431.71x = 171,715.93 × 67,843.09 - Step 4: Simplify right side
124,431.71x = 11,649,738,754.18 - Step 5: Solve for x
x = 11,649,738,754.18/124,431.71 - Step 6: Final answer
x = 93,623.55
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1.5x scale
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.