Finding the Fourth Proportional to 105,568.92, 145,686.09 and 60,246.69
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Solution
The fourth proportional to 105,568.92, 145,686.09 and 60,246.69 is: 83,140.99
Step by Step Solution
- Step 1: Write the proportion equation
105,568.92 : 145,686.09 = 60,246.69 : x - Step 2: Convert to fraction form
105,568.92/145,686.09 = 60,246.69/x - Step 3: Cross multiply
105,568.92x = 145,686.09 × 60,246.69 - Step 4: Simplify right side
105,568.92x = 8,777,104,381.14 - Step 5: Solve for x
x = 8,777,104,381.14/105,568.92 - Step 6: Final answer
x = 83,140.99
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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.