Finding the Fourth Proportional to 147,764.36, 203,922.70 and 84,122.66
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Solution
The fourth proportional to 147,764.36, 203,922.70 and 84,122.66 is: 116,093.76
Step by Step Solution
- Step 1: Write the proportion equation
147,764.36 : 203,922.70 = 84,122.66 : x - Step 2: Convert to fraction form
147,764.36/203,922.70 = 84,122.66/x - Step 3: Cross multiply
147,764.36x = 203,922.70 × 84,122.66 - Step 4: Simplify right side
147,764.36x = 17,154,519,958.38 - Step 5: Solve for x
x = 17,154,519,958.38/147,764.36 - Step 6: Final answer
x = 116,093.76
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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.