Finding the Fourth Proportional to 115,269.99, 159,097.97 and 74,913.63
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Solution
The fourth proportional to 115,269.99, 159,097.97 and 74,913.63 is: 103,397.31
Step by Step Solution
- Step 1: Write the proportion equation
115,269.99 : 159,097.97 = 74,913.63 : x - Step 2: Convert to fraction form
115,269.99/159,097.97 = 74,913.63/x - Step 3: Cross multiply
115,269.99x = 159,097.97 × 74,913.63 - Step 4: Simplify right side
115,269.99x = 11,918,606,458.33 - Step 5: Solve for x
x = 11,918,606,458.33/115,269.99 - Step 6: Final answer
x = 103,397.31
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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.