Finding the Fourth Proportional to 117,728.20, 176,592.30 and 102,521.80
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Solution
The fourth proportional to 117,728.20, 176,592.30 and 102,521.80 is: 153,782.70
Step by Step Solution
- Step 1: Write the proportion equation
117,728.20 : 176,592.30 = 102,521.80 : x - Step 2: Convert to fraction form
117,728.20/176,592.30 = 102,521.80/x - Step 3: Cross multiply
117,728.20x = 176,592.30 × 102,521.80 - Step 4: Simplify right side
117,728.20x = 18,104,560,462.14 - Step 5: Solve for x
x = 18,104,560,462.14/117,728.20 - Step 6: Final answer
x = 153,782.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.