Finding the Fourth Proportional to 125,897.99, 173,742.06 and 71,453.75
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Solution
The fourth proportional to 125,897.99, 173,742.06 and 71,453.75 is: 98,607.78
Step by Step Solution
- Step 1: Write the proportion equation
125,897.99 : 173,742.06 = 71,453.75 : x - Step 2: Convert to fraction form
125,897.99/173,742.06 = 71,453.75/x - Step 3: Cross multiply
125,897.99x = 173,742.06 × 71,453.75 - Step 4: Simplify right side
125,897.99x = 12,414,520,851.01 - Step 5: Solve for x
x = 12,414,520,851.01/125,897.99 - Step 6: Final answer
x = 98,607.78
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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.