Finding the Fourth Proportional to 132,780.89, 199,230.21 and 69,585.99
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Solution
The fourth proportional to 132,780.89, 199,230.21 and 69,585.99 is: 104,409.84
Step by Step Solution
- Step 1: Write the proportion equation
132,780.89 : 199,230.21 = 69,585.99 : x - Step 2: Convert to fraction form
132,780.89/199,230.21 = 69,585.99/x - Step 3: Cross multiply
132,780.89x = 199,230.21 × 69,585.99 - Step 4: Simplify right side
132,780.89x = 13,863,631,400.76 - Step 5: Solve for x
x = 13,863,631,400.76/132,780.89 - Step 6: Final answer
x = 104,409.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.