Finding the Fourth Proportional to 153,872.20, 230,873.10 and 83,801.80
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Solution
The fourth proportional to 153,872.20, 230,873.10 and 83,801.80 is: 125,737.99
Step by Step Solution
- Step 1: Write the proportion equation
153,872.20 : 230,873.10 = 83,801.80 : x - Step 2: Convert to fraction form
153,872.20/230,873.10 = 83,801.80/x - Step 3: Cross multiply
153,872.20x = 230,873.10 × 83,801.80 - Step 4: Simplify right side
153,872.20x = 19,347,581,351.58 - Step 5: Solve for x
x = 19,347,581,351.58/153,872.20 - Step 6: Final answer
x = 125,737.99
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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.