Finding the Fourth Proportional to 107,546.40, 161,319.57 and 51,215.71
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Solution
The fourth proportional to 107,546.40, 161,319.57 and 51,215.71 is: 76,823.55
Step by Step Solution
- Step 1: Write the proportion equation
107,546.40 : 161,319.57 = 51,215.71 : x - Step 2: Convert to fraction form
107,546.40/161,319.57 = 51,215.71/x - Step 3: Cross multiply
107,546.40x = 161,319.57 × 51,215.71 - Step 4: Simplify right side
107,546.40x = 8,262,096,314.44 - Step 5: Solve for x
x = 8,262,096,314.44/107,546.40 - Step 6: Final answer
x = 76,823.55
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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.