Finding the Fourth Proportional to 129,947.52, 194,859.84 and 59,806.08
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Solution
The fourth proportional to 129,947.52, 194,859.84 and 59,806.08 is: 89,680.84
Step by Step Solution
- Step 1: Write the proportion equation
129,947.52 : 194,859.84 = 59,806.08 : x - Step 2: Convert to fraction form
129,947.52/194,859.84 = 59,806.08/x - Step 3: Cross multiply
129,947.52x = 194,859.84 × 59,806.08 - Step 4: Simplify right side
129,947.52x = 11,653,803,179.83 - Step 5: Solve for x
x = 11,653,803,179.83/129,947.52 - Step 6: Final answer
x = 89,680.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.