Finding the Fourth Proportional to 98,676.08, 136,170.96 and 53,964.08
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Solution
The fourth proportional to 98,676.08, 136,170.96 and 53,964.08 is: 74,469.32
Step by Step Solution
- Step 1: Write the proportion equation
98,676.08 : 136,170.96 = 53,964.08 : x - Step 2: Convert to fraction form
98,676.08/136,170.96 = 53,964.08/x - Step 3: Cross multiply
98,676.08x = 136,170.96 × 53,964.08 - Step 4: Simplify right side
98,676.08x = 7,348,340,579.12 - Step 5: Solve for x
x = 7,348,340,579.12/98,676.08 - Step 6: Final answer
x = 74,469.32
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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.