Finding the Fourth Proportional to 146,894.13, 202,775.91 and 99,212.05
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Solution
The fourth proportional to 146,894.13, 202,775.91 and 99,212.05 is: 136,954.51
Step by Step Solution
- Step 1: Write the proportion equation
146,894.13 : 202,775.91 = 99,212.05 : x - Step 2: Convert to fraction form
146,894.13/202,775.91 = 99,212.05/x - Step 3: Cross multiply
146,894.13x = 202,775.91 × 99,212.05 - Step 4: Simplify right side
146,894.13x = 20,117,813,721.72 - Step 5: Solve for x
x = 20,117,813,721.72/146,894.13 - Step 6: Final answer
x = 136,954.51
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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.