Finding the Fourth Proportional to 107,868.24, 148,788.68 and 71,568.90
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Solution
The fourth proportional to 107,868.24, 148,788.68 and 71,568.90 is: 98,718.98
Step by Step Solution
- Step 1: Write the proportion equation
107,868.24 : 148,788.68 = 71,568.90 : x - Step 2: Convert to fraction form
107,868.24/148,788.68 = 71,568.90/x - Step 3: Cross multiply
107,868.24x = 148,788.68 × 71,568.90 - Step 4: Simplify right side
107,868.24x = 10,648,642,160.05 - Step 5: Solve for x
x = 10,648,642,160.05/107,868.24 - Step 6: Final answer
x = 98,718.98
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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.