Finding the Fourth Proportional to 187,972.71, 259,378.35 and 107,405.46
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Solution
The fourth proportional to 187,972.71, 259,378.35 and 107,405.46 is: 148,205.82
Step by Step Solution
- Step 1: Write the proportion equation
187,972.71 : 259,378.35 = 107,405.46 : x - Step 2: Convert to fraction form
187,972.71/259,378.35 = 107,405.46/x - Step 3: Cross multiply
187,972.71x = 259,378.35 × 107,405.46 - Step 4: Simplify right side
187,972.71x = 27,858,649,698.90 - Step 5: Solve for x
x = 27,858,649,698.90/187,972.71 - Step 6: Final answer
x = 148,205.82
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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.