Finding the Fourth Proportional to 140,776.24, 194,271.26 and 77,115.08
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Solution
The fourth proportional to 140,776.24, 194,271.26 and 77,115.08 is: 106,418.84
Step by Step Solution
- Step 1: Write the proportion equation
140,776.24 : 194,271.26 = 77,115.08 : x - Step 2: Convert to fraction form
140,776.24/194,271.26 = 77,115.08/x - Step 3: Cross multiply
140,776.24x = 194,271.26 × 77,115.08 - Step 4: Simplify right side
140,776.24x = 14,981,243,756.60 - Step 5: Solve for x
x = 14,981,243,756.60/140,776.24 - Step 6: Final answer
x = 106,418.84
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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.