Finding the Fourth Proportional to 99,258.75, 136,977.08 and 54,546.75
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Solution
The fourth proportional to 99,258.75, 136,977.08 and 54,546.75 is: 75,274.52
Step by Step Solution
- Step 1: Write the proportion equation
99,258.75 : 136,977.08 = 54,546.75 : x - Step 2: Convert to fraction form
99,258.75/136,977.08 = 54,546.75/x - Step 3: Cross multiply
99,258.75x = 136,977.08 × 54,546.75 - Step 4: Simplify right side
99,258.75x = 7,471,654,265.76 - Step 5: Solve for x
x = 7,471,654,265.76/99,258.75 - Step 6: Final answer
x = 75,274.52
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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.