Finding the Fourth Proportional to 107,169.90, 160,722.02 and 74,102.46
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Solution
The fourth proportional to 107,169.90, 160,722.02 and 74,102.46 is: 111,130.99
Step by Step Solution
- Step 1: Write the proportion equation
107,169.90 : 160,722.02 = 74,102.46 : x - Step 2: Convert to fraction form
107,169.90/160,722.02 = 74,102.46/x - Step 3: Cross multiply
107,169.90x = 160,722.02 × 74,102.46 - Step 4: Simplify right side
107,169.90x = 11,909,896,687.66 - Step 5: Solve for x
x = 11,909,896,687.66/107,169.90 - Step 6: Final answer
x = 111,130.99
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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.