Finding the Fourth Proportional to 125,977.84, 173,849.38 and 69,389.21
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Solution
The fourth proportional to 125,977.84, 173,849.38 and 69,389.21 is: 95,757.09
Step by Step Solution
- Step 1: Write the proportion equation
125,977.84 : 173,849.38 = 69,389.21 : x - Step 2: Convert to fraction form
125,977.84/173,849.38 = 69,389.21/x - Step 3: Cross multiply
125,977.84x = 173,849.38 × 69,389.21 - Step 4: Simplify right side
125,977.84x = 12,063,271,137.19 - Step 5: Solve for x
x = 12,063,271,137.19/125,977.84 - Step 6: Final answer
x = 95,757.09
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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.