Finding the Fourth Proportional to 168,007.14, 251,923.21 and 79,236.81
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Solution
The fourth proportional to 168,007.14, 251,923.21 and 79,236.81 is: 118,813.95
Step by Step Solution
- Step 1: Write the proportion equation
168,007.14 : 251,923.21 = 79,236.81 : x - Step 2: Convert to fraction form
168,007.14/251,923.21 = 79,236.81/x - Step 3: Cross multiply
168,007.14x = 251,923.21 × 79,236.81 - Step 4: Simplify right side
168,007.14x = 19,961,591,525.36 - Step 5: Solve for x
x = 19,961,591,525.36/168,007.14 - Step 6: Final answer
x = 118,813.95
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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.