Finding the Fourth Proportional to 100,337.09, 138,471.41 and 55,625.09
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Solution
The fourth proportional to 100,337.09, 138,471.41 and 55,625.09 is: 76,766.08
Step by Step Solution
- Step 1: Write the proportion equation
100,337.09 : 138,471.41 = 55,625.09 : x - Step 2: Convert to fraction form
100,337.09/138,471.41 = 55,625.09/x - Step 3: Cross multiply
100,337.09x = 138,471.41 × 55,625.09 - Step 4: Simplify right side
100,337.09x = 7,702,484,643.68 - Step 5: Solve for x
x = 7,702,484,643.68/100,337.09 - Step 6: Final answer
x = 76,766.08
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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.