Finding the Fourth Proportional to 129,070.87, 193,625.94 and 65,856.44
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Solution
The fourth proportional to 129,070.87, 193,625.94 and 65,856.44 is: 98,794.69
Step by Step Solution
- Step 1: Write the proportion equation
129,070.87 : 193,625.94 = 65,856.44 : x - Step 2: Convert to fraction form
129,070.87/193,625.94 = 65,856.44/x - Step 3: Cross multiply
129,070.87x = 193,625.94 × 65,856.44 - Step 4: Simplify right side
129,070.87x = 12,751,515,831.08 - Step 5: Solve for x
x = 12,751,515,831.08/129,070.87 - Step 6: Final answer
x = 98,794.69
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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.