Finding the Fourth Proportional to 163,503.14, 225,631.32 and 91,882.13
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Solution
The fourth proportional to 163,503.14, 225,631.32 and 91,882.13 is: 126,795.65
Step by Step Solution
- Step 1: Write the proportion equation
163,503.14 : 225,631.32 = 91,882.13 : x - Step 2: Convert to fraction form
163,503.14/225,631.32 = 91,882.13/x - Step 3: Cross multiply
163,503.14x = 225,631.32 × 91,882.13 - Step 4: Simplify right side
163,503.14x = 20,731,486,276.31 - Step 5: Solve for x
x = 20,731,486,276.31/163,503.14 - Step 6: Final answer
x = 126,795.65
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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.