Finding the Fourth Proportional to 125,727.06, 173,507.97 and 69,143.70
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Solution
The fourth proportional to 125,727.06, 173,507.97 and 69,143.70 is: 95,420.85
Step by Step Solution
- Step 1: Write the proportion equation
125,727.06 : 173,507.97 = 69,143.70 : x - Step 2: Convert to fraction form
125,727.06/173,507.97 = 69,143.70/x - Step 3: Cross multiply
125,727.06x = 173,507.97 × 69,143.70 - Step 4: Simplify right side
125,727.06x = 11,996,983,025.29 - Step 5: Solve for x
x = 11,996,983,025.29/125,727.06 - Step 6: Final answer
x = 95,420.85
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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.