Finding the Fourth Proportional to 140,763.99, 194,273.63 and 86,306.53
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Solution
The fourth proportional to 140,763.99, 194,273.63 and 86,306.53 is: 119,114.86
Step by Step Solution
- Step 1: Write the proportion equation
140,763.99 : 194,273.63 = 86,306.53 : x - Step 2: Convert to fraction form
140,763.99/194,273.63 = 86,306.53/x - Step 3: Cross multiply
140,763.99x = 194,273.63 × 86,306.53 - Step 4: Simplify right side
140,763.99x = 16,767,081,904.44 - Step 5: Solve for x
x = 16,767,081,904.44/140,763.99 - Step 6: Final answer
x = 119,114.86
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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.