Finding the Fourth Proportional to 115,190.68, 158,964.71 and 64,201.99
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Solution
The fourth proportional to 115,190.68, 158,964.71 and 64,201.99 is: 88,599.62
Step by Step Solution
- Step 1: Write the proportion equation
115,190.68 : 158,964.71 = 64,201.99 : x - Step 2: Convert to fraction form
115,190.68/158,964.71 = 64,201.99/x - Step 3: Cross multiply
115,190.68x = 158,964.71 × 64,201.99 - Step 4: Simplify right side
115,190.68x = 10,205,850,087.45 - Step 5: Solve for x
x = 10,205,850,087.45/115,190.68 - Step 6: Final answer
x = 88,599.62
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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.