Finding the Fourth Proportional to 115,178.24, 158,939.84 and 64,874.08
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Solution
The fourth proportional to 115,178.24, 158,939.84 and 64,874.08 is: 89,522.78
Step by Step Solution
- Step 1: Write the proportion equation
115,178.24 : 158,939.84 = 64,874.08 : x - Step 2: Convert to fraction form
115,178.24/158,939.84 = 64,874.08/x - Step 3: Cross multiply
115,178.24x = 158,939.84 × 64,874.08 - Step 4: Simplify right side
115,178.24x = 10,311,075,895.35 - Step 5: Solve for x
x = 10,311,075,895.35/115,178.24 - Step 6: Final answer
x = 89,522.78
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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.