Finding the Fourth Proportional to 124,319.36, 186,480.34 and 68,128.85
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Solution
The fourth proportional to 124,319.36, 186,480.34 and 68,128.85 is: 102,193.99
Step by Step Solution
- Step 1: Write the proportion equation
124,319.36 : 186,480.34 = 68,128.85 : x - Step 2: Convert to fraction form
124,319.36/186,480.34 = 68,128.85/x - Step 3: Cross multiply
124,319.36x = 186,480.34 × 68,128.85 - Step 4: Simplify right side
124,319.36x = 12,704,691,407.69 - Step 5: Solve for x
x = 12,704,691,407.69/124,319.36 - Step 6: Final answer
x = 102,193.99
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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.