Finding the Fourth Proportional to 108,490.60, 162,759.14 and 55,189.99
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Solution
The fourth proportional to 108,490.60, 162,759.14 and 55,189.99 is: 82,796.81
Step by Step Solution
- Step 1: Write the proportion equation
108,490.60 : 162,759.14 = 55,189.99 : x - Step 2: Convert to fraction form
108,490.60/162,759.14 = 55,189.99/x - Step 3: Cross multiply
108,490.60x = 162,759.14 × 55,189.99 - Step 4: Simplify right side
108,490.60x = 8,982,675,309.01 - Step 5: Solve for x
x = 8,982,675,309.01/108,490.60 - Step 6: Final answer
x = 82,796.81
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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.