Finding the Fourth Proportional to 171,920.70, 257,945.85 and 83,252.70
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Solution
The fourth proportional to 171,920.70, 257,945.85 and 83,252.70 is: 124,910.43
Step by Step Solution
- Step 1: Write the proportion equation
171,920.70 : 257,945.85 = 83,252.70 : x - Step 2: Convert to fraction form
171,920.70/257,945.85 = 83,252.70/x - Step 3: Cross multiply
171,920.70x = 257,945.85 × 83,252.70 - Step 4: Simplify right side
171,920.70x = 21,474,688,466.30 - Step 5: Solve for x
x = 21,474,688,466.30/171,920.70 - Step 6: Final answer
x = 124,910.43
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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.