Finding the Fourth Proportional to 132,901.80, 199,352.70 and 115,405.80
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Solution
The fourth proportional to 132,901.80, 199,352.70 and 115,405.80 is: 173,108.70
Step by Step Solution
- Step 1: Write the proportion equation
132,901.80 : 199,352.70 = 115,405.80 : x - Step 2: Convert to fraction form
132,901.80/199,352.70 = 115,405.80/x - Step 3: Cross multiply
132,901.80x = 199,352.70 × 115,405.80 - Step 4: Simplify right side
132,901.80x = 23,006,457,825.66 - Step 5: Solve for x
x = 23,006,457,825.66/132,901.80 - Step 6: Final answer
x = 173,108.70
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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.