Finding the Fourth Proportional to 166,313.20, 249,469.80 and 82,113.70
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Solution
The fourth proportional to 166,313.20, 249,469.80 and 82,113.70 is: 123,170.55
Step by Step Solution
- Step 1: Write the proportion equation
166,313.20 : 249,469.80 = 82,113.70 : x - Step 2: Convert to fraction form
166,313.20/249,469.80 = 82,113.70/x - Step 3: Cross multiply
166,313.20x = 249,469.80 × 82,113.70 - Step 4: Simplify right side
166,313.20x = 20,484,888,316.26 - Step 5: Solve for x
x = 20,484,888,316.26/166,313.20 - Step 6: Final answer
x = 123,170.55
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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.