Finding the Fourth Proportional to 129,763.08, 179,161.57 and 83,933.79
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Solution
The fourth proportional to 129,763.08, 179,161.57 and 83,933.79 is: 115,885.88
Step by Step Solution
- Step 1: Write the proportion equation
129,763.08 : 179,161.57 = 83,933.79 : x - Step 2: Convert to fraction form
129,763.08/179,161.57 = 83,933.79/x - Step 3: Cross multiply
129,763.08x = 179,161.57 × 83,933.79 - Step 4: Simplify right side
129,763.08x = 15,037,709,025.51 - Step 5: Solve for x
x = 15,037,709,025.51/129,763.08 - Step 6: Final answer
x = 115,885.88
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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.