Finding the Fourth Proportional to 125,921.99, 173,808.99 and 100,604.63
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Solution
The fourth proportional to 125,921.99, 173,808.99 and 100,604.63 is: 138,863.67
Step by Step Solution
- Step 1: Write the proportion equation
125,921.99 : 173,808.99 = 100,604.63 : x - Step 2: Convert to fraction form
125,921.99/173,808.99 = 100,604.63/x - Step 3: Cross multiply
125,921.99x = 173,808.99 × 100,604.63 - Step 4: Simplify right side
125,921.99x = 17,485,989,564.15 - Step 5: Solve for x
x = 17,485,989,564.15/125,921.99 - Step 6: Final answer
x = 138,863.67
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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.