Finding the Fourth Proportional to 160,433.51, 221,400.86 and 87,835.19
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Solution
The fourth proportional to 160,433.51, 221,400.86 and 87,835.19 is: 121,213.99
Step by Step Solution
- Step 1: Write the proportion equation
160,433.51 : 221,400.86 = 87,835.19 : x - Step 2: Convert to fraction form
160,433.51/221,400.86 = 87,835.19/x - Step 3: Cross multiply
160,433.51x = 221,400.86 × 87,835.19 - Step 4: Simplify right side
160,433.51x = 19,446,786,604.26 - Step 5: Solve for x
x = 19,446,786,604.26/160,433.51 - Step 6: Final answer
x = 121,213.99
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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.