Finding the Fourth Proportional to 106,686.87, 160,130.76 and 54,134.07
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Solution
The fourth proportional to 106,686.87, 160,130.76 and 54,134.07 is: 81,252.08
Step by Step Solution
- Step 1: Write the proportion equation
106,686.87 : 160,130.76 = 54,134.07 : x - Step 2: Convert to fraction form
106,686.87/160,130.76 = 54,134.07/x - Step 3: Cross multiply
106,686.87x = 160,130.76 × 54,134.07 - Step 4: Simplify right side
106,686.87x = 8,668,529,770.99 - Step 5: Solve for x
x = 8,668,529,770.99/106,686.87 - Step 6: Final answer
x = 81,252.08
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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.