Finding the Fourth Proportional to 146,721.21, 202,476.11 and 86,294.40
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Solution
The fourth proportional to 146,721.21, 202,476.11 and 86,294.40 is: 119,086.77
Step by Step Solution
- Step 1: Write the proportion equation
146,721.21 : 202,476.11 = 86,294.40 : x - Step 2: Convert to fraction form
146,721.21/202,476.11 = 86,294.40/x - Step 3: Cross multiply
146,721.21x = 202,476.11 × 86,294.40 - Step 4: Simplify right side
146,721.21x = 17,472,554,426.78 - Step 5: Solve for x
x = 17,472,554,426.78/146,721.21 - Step 6: Final answer
x = 119,086.77
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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.