Finding the Fourth Proportional to 106,985.44, 160,324.92 and 60,139.84
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Solution
The fourth proportional to 106,985.44, 160,324.92 and 60,139.84 is: 90,123.62
Step by Step Solution
- Step 1: Write the proportion equation
106,985.44 : 160,324.92 = 60,139.84 : x - Step 2: Convert to fraction form
106,985.44/160,324.92 = 60,139.84/x - Step 3: Cross multiply
106,985.44x = 160,324.92 × 60,139.84 - Step 4: Simplify right side
106,985.44x = 9,641,915,036.81 - Step 5: Solve for x
x = 9,641,915,036.81/106,985.44 - Step 6: Final answer
x = 90,123.62
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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.