Finding the Fourth Proportional to 106,639.30, 159,267.58 and 96,624.05
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Solution
The fourth proportional to 106,639.30, 159,267.58 and 96,624.05 is: 144,309.64
Step by Step Solution
- Step 1: Write the proportion equation
106,639.30 : 159,267.58 = 96,624.05 : x - Step 2: Convert to fraction form
106,639.30/159,267.58 = 96,624.05/x - Step 3: Cross multiply
106,639.30x = 159,267.58 × 96,624.05 - Step 4: Simplify right side
106,639.30x = 15,389,078,613.30 - Step 5: Solve for x
x = 15,389,078,613.30/106,639.30 - Step 6: Final answer
x = 144,309.64
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.