Finding the Fourth Proportional to 192,120.47, 265,126.40 and 107,237.53
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Solution
The fourth proportional to 192,120.47, 265,126.40 and 107,237.53 is: 147,987.88
Step by Step Solution
- Step 1: Write the proportion equation
192,120.47 : 265,126.40 = 107,237.53 : x - Step 2: Convert to fraction form
192,120.47/265,126.40 = 107,237.53/x - Step 3: Cross multiply
192,120.47x = 265,126.40 × 107,237.53 - Step 4: Simplify right side
192,120.47x = 28,431,500,471.15 - Step 5: Solve for x
x = 28,431,500,471.15/192,120.47 - Step 6: Final answer
x = 147,987.88
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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.