Finding the Fourth Proportional to 160,512.93, 221,499.94 and 87,916.14
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Solution
The fourth proportional to 160,512.93, 221,499.94 and 87,916.14 is: 121,319.94
Step by Step Solution
- Step 1: Write the proportion equation
160,512.93 : 221,499.94 = 87,916.14 : x - Step 2: Convert to fraction form
160,512.93/221,499.94 = 87,916.14/x - Step 3: Cross multiply
160,512.93x = 221,499.94 × 87,916.14 - Step 4: Simplify right side
160,512.93x = 19,473,419,104.08 - Step 5: Solve for x
x = 19,473,419,104.08/160,512.93 - Step 6: Final answer
x = 121,319.94
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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.