Finding the Fourth Proportional to 163,206.87, 225,241.66 and 91,587.17
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Solution
The fourth proportional to 163,206.87, 225,241.66 and 91,587.17 is: 126,399.38
Step by Step Solution
- Step 1: Write the proportion equation
163,206.87 : 225,241.66 = 91,587.17 : x - Step 2: Convert to fraction form
163,206.87/225,241.66 = 91,587.17/x - Step 3: Cross multiply
163,206.87x = 225,241.66 × 91,587.17 - Step 4: Simplify right side
163,206.87x = 20,629,246,883.09 - Step 5: Solve for x
x = 20,629,246,883.09/163,206.87 - Step 6: Final answer
x = 126,399.38
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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.