Finding the Fourth Proportional to 129,866.92, 179,206.50 and 73,283.56
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Solution
The fourth proportional to 129,866.92, 179,206.50 and 73,283.56 is: 101,125.75
Step by Step Solution
- Step 1: Write the proportion equation
129,866.92 : 179,206.50 = 73,283.56 : x - Step 2: Convert to fraction form
129,866.92/179,206.50 = 73,283.56/x - Step 3: Cross multiply
129,866.92x = 179,206.50 × 73,283.56 - Step 4: Simplify right side
129,866.92x = 13,132,890,295.14 - Step 5: Solve for x
x = 13,132,890,295.14/129,866.92 - Step 6: Final answer
x = 101,125.75
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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.