Finding the Fourth Proportional to 129,947.92, 179,318.12 and 73,364.88
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Solution
The fourth proportional to 129,947.92, 179,318.12 and 73,364.88 is: 101,237.88
Step by Step Solution
- Step 1: Write the proportion equation
129,947.92 : 179,318.12 = 73,364.88 : x - Step 2: Convert to fraction form
129,947.92/179,318.12 = 73,364.88/x - Step 3: Cross multiply
129,947.92x = 179,318.12 × 73,364.88 - Step 4: Simplify right side
129,947.92x = 13,155,652,355.63 - Step 5: Solve for x
x = 13,155,652,355.63/129,947.92 - Step 6: Final answer
x = 101,237.88
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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.