Finding the Fourth Proportional to 112,465.26, 155,202.21 and 64,717.66
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Solution
The fourth proportional to 112,465.26, 155,202.21 and 64,717.66 is: 89,310.46
Step by Step Solution
- Step 1: Write the proportion equation
112,465.26 : 155,202.21 = 64,717.66 : x - Step 2: Convert to fraction form
112,465.26/155,202.21 = 64,717.66/x - Step 3: Cross multiply
112,465.26x = 155,202.21 × 64,717.66 - Step 4: Simplify right side
112,465.26x = 10,044,323,858.03 - Step 5: Solve for x
x = 10,044,323,858.03/112,465.26 - Step 6: Final answer
x = 89,310.46
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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.