Finding the Fourth Proportional to 163,655.75, 225,798.35 and 98,217.99
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Solution
The fourth proportional to 163,655.75, 225,798.35 and 98,217.99 is: 135,512.87
Step by Step Solution
- Step 1: Write the proportion equation
163,655.75 : 225,798.35 = 98,217.99 : x - Step 2: Convert to fraction form
163,655.75/225,798.35 = 98,217.99/x - Step 3: Cross multiply
163,655.75x = 225,798.35 × 98,217.99 - Step 4: Simplify right side
163,655.75x = 22,177,459,591.23 - Step 5: Solve for x
x = 22,177,459,591.23/163,655.75 - Step 6: Final answer
x = 135,512.87
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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.