Finding the Fourth Proportional to 115,669.08, 159,610.50 and 65,368.08
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Solution
The fourth proportional to 115,669.08, 159,610.50 and 65,368.08 is: 90,200.70
Step by Step Solution
- Step 1: Write the proportion equation
115,669.08 : 159,610.50 = 65,368.08 : x - Step 2: Convert to fraction form
115,669.08/159,610.50 = 65,368.08/x - Step 3: Cross multiply
115,669.08x = 159,610.50 × 65,368.08 - Step 4: Simplify right side
115,669.08x = 10,433,431,932.84 - Step 5: Solve for x
x = 10,433,431,932.84/115,669.08 - Step 6: Final answer
x = 90,200.70
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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.