Finding the Fourth Proportional to 160,717.60, 221,745.36 and 93,636.64
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Solution
The fourth proportional to 160,717.60, 221,745.36 and 93,636.64 is: 129,192.39
Step by Step Solution
- Step 1: Write the proportion equation
160,717.60 : 221,745.36 = 93,636.64 : x - Step 2: Convert to fraction form
160,717.60/221,745.36 = 93,636.64/x - Step 3: Cross multiply
160,717.60x = 221,745.36 × 93,636.64 - Step 4: Simplify right side
160,717.60x = 20,763,490,445.99 - Step 5: Solve for x
x = 20,763,490,445.99/160,717.60 - Step 6: Final answer
x = 129,192.39
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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.