Finding the Fourth Proportional to 125,929.18, 187,972.43 and 110,982.88
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Solution
The fourth proportional to 125,929.18, 187,972.43 and 110,982.88 is: 165,662.33
Step by Step Solution
- Step 1: Write the proportion equation
125,929.18 : 187,972.43 = 110,982.88 : x - Step 2: Convert to fraction form
125,929.18/187,972.43 = 110,982.88/x - Step 3: Cross multiply
125,929.18x = 187,972.43 × 110,982.88 - Step 4: Simplify right side
125,929.18x = 20,861,721,642.00 - Step 5: Solve for x
x = 20,861,721,642.00/125,929.18 - Step 6: Final answer
x = 165,662.33
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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.