Finding the Fourth Proportional to 119,354.99, 164,706.11 and 65,639.84
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Solution
The fourth proportional to 119,354.99, 164,706.11 and 65,639.84 is: 90,580.90
Step by Step Solution
- Step 1: Write the proportion equation
119,354.99 : 164,706.11 = 65,639.84 : x - Step 2: Convert to fraction form
119,354.99/164,706.11 = 65,639.84/x - Step 3: Cross multiply
119,354.99x = 164,706.11 × 65,639.84 - Step 4: Simplify right side
119,354.99x = 10,811,281,801.84 - Step 5: Solve for x
x = 10,811,281,801.84/119,354.99 - Step 6: Final answer
x = 90,580.90
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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.