Finding the Fourth Proportional to 127,652.28, 176,163.30 and 71,064.60
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Solution
The fourth proportional to 127,652.28, 176,163.30 and 71,064.60 is: 98,070.90
Step by Step Solution
- Step 1: Write the proportion equation
127,652.28 : 176,163.30 = 71,064.60 : x - Step 2: Convert to fraction form
127,652.28/176,163.30 = 71,064.60/x - Step 3: Cross multiply
127,652.28x = 176,163.30 × 71,064.60 - Step 4: Simplify right side
127,652.28x = 12,518,974,449.18 - Step 5: Solve for x
x = 12,518,974,449.18/127,652.28 - Step 6: Final answer
x = 98,070.90
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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.