Finding the Fourth Proportional to 127,617.79, 176,109.55 and 71,027.95
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Solution
The fourth proportional to 127,617.79, 176,109.55 and 71,027.95 is: 98,016.90
Step by Step Solution
- Step 1: Write the proportion equation
127,617.79 : 176,109.55 = 71,027.95 : x - Step 2: Convert to fraction form
127,617.79/176,109.55 = 71,027.95/x - Step 3: Cross multiply
127,617.79x = 176,109.55 × 71,027.95 - Step 4: Simplify right side
127,617.79x = 12,508,700,311.92 - Step 5: Solve for x
x = 12,508,700,311.92/127,617.79 - Step 6: Final answer
x = 98,016.90
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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.