Finding the Fourth Proportional to 134,861.07, 202,229.02 and 78,717.41
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Solution
The fourth proportional to 134,861.07, 202,229.02 and 78,717.41 is: 118,039.58
Step by Step Solution
- Step 1: Write the proportion equation
134,861.07 : 202,229.02 = 78,717.41 : x - Step 2: Convert to fraction form
134,861.07/202,229.02 = 78,717.41/x - Step 3: Cross multiply
134,861.07x = 202,229.02 × 78,717.41 - Step 4: Simplify right side
134,861.07x = 15,918,944,681.24 - Step 5: Solve for x
x = 15,918,944,681.24/134,861.07 - Step 6: Final answer
x = 118,039.58
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.