Finding the Fourth Proportional to 101,119.14, 139,544.25 and 55,797.09
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Solution
The fourth proportional to 101,119.14, 139,544.25 and 55,797.09 is: 76,999.89
Step by Step Solution
- Step 1: Write the proportion equation
101,119.14 : 139,544.25 = 55,797.09 : x - Step 2: Convert to fraction form
101,119.14/139,544.25 = 55,797.09/x - Step 3: Cross multiply
101,119.14x = 139,544.25 × 55,797.09 - Step 4: Simplify right side
101,119.14x = 7,786,162,099.53 - Step 5: Solve for x
x = 7,786,162,099.53/101,119.14 - Step 6: Final answer
x = 76,999.89
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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.