Finding the Fourth Proportional to 99,445.08, 136,887.61 and 86,676.08
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Solution
The fourth proportional to 99,445.08, 136,887.61 and 86,676.08 is: 119,310.89
Step by Step Solution
- Step 1: Write the proportion equation
99,445.08 : 136,887.61 = 86,676.08 : x - Step 2: Convert to fraction form
99,445.08/136,887.61 = 86,676.08/x - Step 3: Cross multiply
99,445.08x = 136,887.61 × 86,676.08 - Step 4: Simplify right side
99,445.08x = 11,864,880,534.24 - Step 5: Solve for x
x = 11,864,880,534.24/99,445.08 - Step 6: Final answer
x = 119,310.89
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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.