Finding the Fourth Proportional to 106,542.78, 147,029.85 and 58,145.08
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Solution
The fourth proportional to 106,542.78, 147,029.85 and 58,145.08 is: 80,240.65
Step by Step Solution
- Step 1: Write the proportion equation
106,542.78 : 147,029.85 = 58,145.08 : x - Step 2: Convert to fraction form
106,542.78/147,029.85 = 58,145.08/x - Step 3: Cross multiply
106,542.78x = 147,029.85 × 58,145.08 - Step 4: Simplify right side
106,542.78x = 8,549,061,846.68 - Step 5: Solve for x
x = 8,549,061,846.68/106,542.78 - Step 6: Final answer
x = 80,240.65
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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.