Finding the Fourth Proportional to 115,979.14, 159,941.01 and 75,680.02
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Solution
The fourth proportional to 115,979.14, 159,941.01 and 75,680.02 is: 104,366.52
Step by Step Solution
- Step 1: Write the proportion equation
115,979.14 : 159,941.01 = 75,680.02 : x - Step 2: Convert to fraction form
115,979.14/159,941.01 = 75,680.02/x - Step 3: Cross multiply
115,979.14x = 159,941.01 × 75,680.02 - Step 4: Simplify right side
115,979.14x = 12,104,338,835.62 - Step 5: Solve for x
x = 12,104,338,835.62/115,979.14 - Step 6: Final answer
x = 104,366.52
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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.