Finding the Fourth Proportional to 144,740.97, 199,753.61 and 91,071.99
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Solution
The fourth proportional to 144,740.97, 199,753.61 and 91,071.99 is: 125,686.31
Step by Step Solution
- Step 1: Write the proportion equation
144,740.97 : 199,753.61 = 91,071.99 : x - Step 2: Convert to fraction form
144,740.97/199,753.61 = 91,071.99/x - Step 3: Cross multiply
144,740.97x = 199,753.61 × 91,071.99 - Step 4: Simplify right side
144,740.97x = 18,191,958,772.38 - Step 5: Solve for x
x = 18,191,958,772.38/144,740.97 - Step 6: Final answer
x = 125,686.31
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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.