Finding the Fourth Proportional to 108,202.25, 149,276.79 and 62,872.13
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Solution
The fourth proportional to 108,202.25, 149,276.79 and 62,872.13 is: 86,738.94
Step by Step Solution
- Step 1: Write the proportion equation
108,202.25 : 149,276.79 = 62,872.13 : x - Step 2: Convert to fraction form
108,202.25/149,276.79 = 62,872.13/x - Step 3: Cross multiply
108,202.25x = 149,276.79 × 62,872.13 - Step 4: Simplify right side
108,202.25x = 9,385,349,000.48 - Step 5: Solve for x
x = 9,385,349,000.48/108,202.25 - Step 6: Final answer
x = 86,738.94
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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.