Finding the Fourth Proportional to 164,463.19, 226,964.70 and 100,788.68
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Solution
The fourth proportional to 164,463.19, 226,964.70 and 100,788.68 is: 139,091.75
Step by Step Solution
- Step 1: Write the proportion equation
164,463.19 : 226,964.70 = 100,788.68 : x - Step 2: Convert to fraction form
164,463.19/226,964.70 = 100,788.68/x - Step 3: Cross multiply
164,463.19x = 226,964.70 × 100,788.68 - Step 4: Simplify right side
164,463.19x = 22,875,473,087.01 - Step 5: Solve for x
x = 22,875,473,087.01/164,463.19 - Step 6: Final answer
x = 139,091.75
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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.