Finding the Fourth Proportional to 108,202.76, 149,277.48 and 62,872.63
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Solution
The fourth proportional to 108,202.76, 149,277.48 and 62,872.63 is: 86,739.63
Step by Step Solution
- Step 1: Write the proportion equation
108,202.76 : 149,277.48 = 62,872.63 : x - Step 2: Convert to fraction form
108,202.76/149,277.48 = 62,872.63/x - Step 3: Cross multiply
108,202.76x = 149,277.48 × 62,872.63 - Step 4: Simplify right side
108,202.76x = 9,385,467,020.99 - Step 5: Solve for x
x = 9,385,467,020.99/108,202.76 - Step 6: Final answer
x = 86,739.63
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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.